science homework for 4th grade

4th Grade Science Worksheets and Study Guides

The big ideas in Fourth Grade Science include exploring the sciences within the framework of the following topics: “Organisms and Their Environments” (patterns of behavior and changes in the environment); “Astronomy” (Earth, Sun, Moon and planets); “Weather” (water cycle, clouds, and severe weather); and “Properties of Light and Electricity” (reflection, refraction, and series and parallel circuits).

Science Worksheets and Study Guides Fourth Grade

Earth & space, earth - inside and out, earth's waters, fossils and extinct animals, our solar system and beyond, rocks and minerals, ecosystems and changes in ecosystems, food webs/food chains, forces, motion & energy, electricity and magnetism, force, motion and energy, light and sound, plants & animals, animal growth and reproduction, cells- the building blocks of living things, classifying organisms, introduction to animals, invertebrates - animals without backbones, organ systems, plant growth and reproduction, plant structure and function, vertebrates - animals with backbones, did you know... 4th grade, hands-on lab skills/science inquiry, math in science, science in our world, weather & climate, weather and climate, newpath learning resources are fully aligned to us education standards. select a standard below to view aligned activities for your selected subject and grade:.

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4th Grade Science Worksheets The 4th grade curriculum covers a very broad range of topics. We scratch the surface of biology, but spend a lot more time on the physical sciences.

Atmospheric Pressure & Light - The deeper you go, the more stuff on top of you; as my old chemistry teacher would say.

Cycles and Patterns Related to the Earth, Sun and Moon - The universe is just full of patterns.

Energy Exists in Many Forms - Lets look at the nature of energy.

Inherited Genes - We get old because we basic run out of DNA as in continually replicates.

How Gravity Affects the Sun, Moon, and Earth

All Things Matter - Let's look at the basic principals of chemistry.

What is Photosynthesis? I wish I could do photosynthesis. Lunch would be super cheap.

How Plants and Animals Survive & Adapt to their Environment

Plant Parts and Their Functions - We look at all the major organelles.

The Sun's Energy is Vital for Life on Earth - What happens when the sun burns out?

Understanding the Water Cycle - This is a biggie and appears on every test, every where.

Animal Cell Diagram - The animal are built to divide and work on dividing.

Plant Cell Diagram - A simple diagram for you in the traditional green.

Water Cycle Diagram - A very important part of weather patterns.

Grade 4 Science Vocabulary Quiz - This content for this level is very nature oriented, so is this quiz.

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Grade 4 science worksheets , PDF Printable

Grade 4 science worksheets | 4th grade science worksheets, PDF Printable. Topics covered include: Ecosystems, cells, adaptations, rocks and minerals, scientific names, weather and date readings, states of matter, thermal and heat energy flows an more. Each worksheet if a printable pdf sheet with answer keys attached for harder exercises. Download and share.

Adaptations

Adaptation of animals printable worksheet, learn about animals.

Print here >>>

Interactive Test Sheets

Don't have a printer ? Don't worry. Check out online activity sheets here

Practice here >>>

Chicken Life Cycle

Worksheet on the life cycle of a chicken from egg, chick , growth. Print & learn.

Facts on animals

Learn some facts about animals on this pdf printable worksheet, diet, reproduction etc.

Frog Life Cycle

Learn the stages in the life cycle of a frog, egg, tadpole, froglet, adult.

Grasshopper

Worksheet on the life cycle of a grasshopper from egg, numph, adult..

• Digestive system

The human digestive system worksheet pdf printable for educators.

Five senses

printable activity on the fives senses, smell, sight, touch, taste etc.

Animal cell

Animal cell worksheet pdf, learn to label parts of an animal cell.

Cells & Functions

Functions of parts of a cell worksheet e.g. function of nucleus, mitichondrion etc.

Plant Cell Functions

Learn about the functions of the parts of a plant cell, cell wall, cell membrane etc.

An anotated diagram of plan cells. Label cell parts worksheet pdf.

Living & Nonliving

Learn how to distinguish between living and nonliving things in this activity sheet..

Fish, Mammals, Birds

Classification of organisms worksheets e.g. mammals, bird, fish, reptile, amphibians.

Vertebrates, invertebrates

Classify animals either as vertebrates of invertebrates on this worksheet. backbone / no backbone.

Temperate Ecosystems worksheet for kids, learn about producers, consumers, types of ecosystems etc.

Tropical ecosystems

Tropical ecosystem worksheet. Learn about types of animals and food chain.

Force & Motion

Learn about forces on this sheet. Learn about lead concepts on force & motion.

Learn about different forces, friction, gravity, motion, speed, acceleration and more. pdf.

Diagrams and illustrations for 4th graders to learn predicting heat flow across materials.

Activity worksheet on comparing materials of objects, gold, rock, acidity, hardness etc.

Learn about mixtures, methods of separating mixtures, distunguishing between both.

Identify physical and chemical changes in the worksheet. An answer key is attached.

Classify vegetables and fruits on this worksheet. garlic, onion, cabbage, lettus, avacado, carrot..

Plant Parts

Activity on functions on the parts of a plant: roots, leaves, shoots, seeds.

Label Flower

Learn the scientific and common names of animals: dog, elephant, fox, tiger etc.

Climate data reading and predictions worksheet, read graphs, temperature, rainfall etc.

Reading thermometers

Teach students how to read thermometer readings in degrees, mercury level etc.

Weekly Temperature

Teach students how to read weekly temperature data on this worksheet and learn predictions.

Dog hind leg anatomy diagram to be labelled. Printable sheet

Human eye diagram

The structure of the human eye with a printable pdf test sheet

Human skull

The human skull anatomy with bones of the skull to label, pdf worksheet

Stage beetle life cycle

The stage beetle life cycle diagram with parts to label

Nose & Nasal Cavity

The nose and nasal cavity diagram worksheet labeling activity.

Parts of stomach

Learn different parts of the stomach, stomach anatomy worksheet pdf.

The digestive system diagram to label. Learn anatomy of the stomach.

Human ear diagram

The human ear structure and function pdf worksheet.

Human teeth diagrams to label worksheet pdf print.

Learn different Earth processes on this worksheet pdf. Flooding, erosion etc

Gas, Solid, Liquid

Identify human body parts and their functions, teeth, skin, tongue, eye, ear etc..

Learn to label the parts of a bird. wings, legs, eye, beak, tail, crown etc..

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Free Printable Science Worksheets for 4th Grade

Science worksheets for Grade 4 teachers: Discover a world of free printable resources to help your students explore and learn key scientific concepts. Dive into Quizizz's curated collection today!

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Explore printable Science worksheets for 4th Grade

Science worksheets for Grade 4 are essential tools for teachers who aim to make learning both engaging and effective for their students. These worksheets cover a wide range of topics, including life science, earth science, physical science, and the scientific method. By incorporating these resources into their lesson plans, teachers can provide a solid foundation for students to build upon as they progress through their science education. Grade 4 science worksheets are designed to be age-appropriate and aligned with educational standards, ensuring that students are challenged and supported in their learning journey. Teachers can utilize these worksheets to reinforce key concepts, assess understanding, and encourage critical thinking and problem-solving skills in their students.

Quizizz is an excellent platform for teachers to access a vast collection of science worksheets for Grade 4, as well as other valuable resources such as quizzes, interactive lessons, and games. This platform allows teachers to create a customized learning experience for their students, tailoring the content to suit the needs of their specific class. With Quizizz, teachers can easily track student progress and identify areas where additional support may be required. In addition to Grade 4 science worksheets, Quizizz offers resources for other subjects and grade levels, making it a comprehensive and versatile tool for educators. By incorporating Quizizz into their teaching strategies, teachers can enhance student engagement, promote collaboration, and foster a love for learning in their classrooms.

• Inspiration

Fourth grade science

IXL offers more than 100 fourth grade science skills to explore and learn! Not sure where to start? Go to your personalized Recommendations wall to find a skill that looks interesting, or select a skill plan that aligns to your textbook, state standards, or standardized test.

A. Materials

• 1 Compare properties of objects
• 2 Compare properties of materials

B. Matter and mass

• 1 Calculate density
• 2 Understand conservation of matter using graphs

C. States of matter

• 1 Identify and sort solids, liquids, and gases
• 2 Change-of-state diagrams: solid, liquid, and gas
• 3 Heating, cooling, and changes of state

D. Heat and thermal energy

• 1 Predict heat flow
• 2 Predict temperature changes
• 3 How is temperature related to thermal energy?

E. Physical and chemical change

• 1 Identify physical and chemical changes
• 2 Compare physical and chemical changes

F. Mixtures

• 1 Identify mixtures

G. Force and motion

• 1 Identify directions of forces
• 2 How do balanced and unbalanced forces affect motion?
• 3 How does mass affect force and acceleration?
• 4 Compare amplitudes and wavelengths of waves
• 1 Identify magnets that attract or repel
• 2 Label magnets that attract or repel
• 3 Compare strengths of magnetic forces

I. Energy transformation

• 1 Energy transformation

J. Electricity

• 1 Introduction to static electricity and charged objects
• 2 Electric circuits
• • New! How does light travel and interact with matter?

L. Classification

• 1 Identify living and nonliving things
• 2 Identify mammals, birds, fish, reptiles, and amphibians
• 3 Identify vertebrates and invertebrates
• 4 Use evidence to classify mammals, birds, fish, reptiles, and amphibians
• 5 Use evidence to classify animals
• 6 Describe, classify, and compare kingdoms

M. Scientific names

• 1 Identify common and scientific names
• 2 Origins of scientific names
• 3 Use scientific names to classify organisms
• 1 Read and construct animal life cycle diagrams
• 2 Compare animal life cycles
• 3 Human organs and their functions
• 4 Body systems: circulation and respiration
• 5 Body systems: digestion
• 6 Body systems: removing waste
• 7 Body systems: perception and motion
• 1 Classify fruits and vegetables as plant parts
• 2 Identify plant parts and their functions
• 3 How do plants make food?
• 4 Identify flower parts and their functions
• 5 Describe and construct flowering plant life cycles
• 6 Describe and construct conifer life cycles

P. Adaptations

• 1 Introduction to adaptations
• 2 Animal adaptations: beaks, mouths, and necks
• 3 Animal adaptations: feet and limbs
• 4 Animal adaptations: skins and body coverings

Q. Traits and heredity

• 1 What affects traits? Use observations to support a hypothesis
• 2 Match offspring to parents using inherited traits
• 3 Identify inherited and acquired traits
• 4 Inherited and acquired traits: use evidence to support a statement
• 5 Read a plant pedigree chart
• 6 Read an animal pedigree chart
• 1 Identify functions of plant cell parts
• 2 Identify functions of animal cell parts
• 3 Plant cell diagrams: identify parts
• 4 Animal cell diagrams: identify parts
• 5 Plant cell diagrams: label parts
• 6 Animal cell diagrams: label parts
• 7 Compare plant and animal cells
• 8 Cell part functions: true or false

S. Ecosystems

• 1 Identify ecosystems
• 2 Describe ecosystems
• 3 Identify roles in food chains
• 4 How does matter move in food chains?
• 5 Interpret food webs

T. Conservation and natural resources

• 1 Science literacy: how can a community protect sea turtles?
• 2 Evaluate natural energy sources

U. Rocks and minerals

• 1 Changes to Earth's surface: erosion
• 2 Identify minerals using properties
• 3 Identify rocks using properties
• 4 How do sedimentary rocks form?
• 5 Classify rocks as igneous, sedimentary, or metamorphic
• 6 How do rock layers form?
• 1 Introduction to fossils
• 2 Identify and classify fossils
• 3 Compare fossils to modern organisms
• 4 Compare ancient and modern organisms: use observations to support a hypothesis
• 5 Interpret evidence from fossils in rock layers

W. Weather and climate

• 1 Read a thermometer
• 2 Compare temperatures on thermometers
• 3 Collect and graph temperature data
• 4 What's the difference between weather and climate?
• 5 Weather and climate around the world
• 6 Weather or climate? Cite text
• 7 Use climate data to make predictions
• 8 Use data to describe climates
• 9 Label parts of water cycle diagrams

X. Earth's features

• 1 Identify Earth's land features using photographs
• 2 Identify Earth's land features using satellite images
• 3 Describe and graph water on Earth
• 4 Read a topographic map
• 5 Select parts of a topographic map

Y. Earth events

• 1 Changes to Earth's surface: earthquakes
• 2 Changes to Earth's surface: volcanic eruptions

Z. Astronomy

• 2 Earth’s rotation and orbit
• 3 Day and night
• 4 Brightness of the Sun and other stars
• 5 Constellations and the changing night sky
• 6 Identify phases of the Moon
• 8 Identify constellations

AA. Engineering practices

• 1 Evaluate multiple design solutions to prevent flooding
• 2 Identify the best design solution to prevent hurricane damage

BB. Units and measurement

• 1 Choose customary units of distance
• 2 Choose metric units of distance
• 3 Choose customary units of mass
• 4 Choose metric units of mass
• 5 Choose customary units of volume
• 6 Choose metric units of volume
• 7 Abbreviate time and length units
• 8 Abbreviate mass and volume units

4th Grade Science Worksheets From Scholastic Teachables

4th grade science  worksheets from scholastic teachables.

Scholastic Teachables (formerly Scholastic Printables) offers hundreds of fourth grade science worksheets, as well as teaching ideas, projects, experiments, and activities. These engaging resources support science instruction on a range of topics including earth science, life science, physical science, planets, space, seasons, weather, and more. They will not only help build understanding of fundamental concepts in science and STEM learning but will also foster interest in the sciences and the scientific process.

Sign up today and get instant online access to fourth grade science worksheets, as well as science lesson plans, mini-books, educational games, and more. Plus, you can access more than 30,000 award-winning printables and leveled learning collections to reach every learner at every level.

4th Grade Science Worksheets Cover:

• Animal Adaptation
• Animal Behavior
• Dinosaurs and Fossils
• Earth Science
• Environmental Awareness
• Health and Safety
• The Human Body
• Life Cycles
• Life Science
• Natural Disasters
• Observation Skills
• Oceans and Rivers
• Physical Science
• Plants and Flowers
• Scientific Method
• Seasons and Weather
• STEM Activities
• Water Cycle

Sample 4th Grade Science Worksheets

Scholastic Teachables has hundreds of 4th grade science worksheets targeted for all your teaching needs. Here's a sample of fourth grade activities and worksheets for you to try in your class— FREE  with a 30-day trial or subscription.

Additional Alphabet Worksheets (Subscription Required)

Letter B Bulletin Board Square

Letter Yy: Alphabet Letter and Picture (Full-Color Reference)

Speedy Work - Alphabet Recognition (Practice Page)

Pocket-Folder Center: Cereal on Sale! (Alphabetical order)

Alphabet Rhyme: Handwriting Practice Page

Dictionary Skills: Alphabetical Order (Practice Page)

Lowercase c: Alphabet Learning Mats

Uppercase D: Alphabet Learning Mats

Letter M: Letter Formation Practice

Manuscript Alphabet: Handwriting Practice Page

Big Birthday Bash!: Identifying Upper- and Lowercase B

Cursive Writing Practice: The Alphabet (Lowercase)

Alphabet Clouds: Beginning Reader Science Play

Alphabet Activator: Kick-Off Assessment for Differentiated Lessons

Letter Ll Illustrations

Check It Out!: Identifying Upper- and Lowercase L

The King's Castle: Identifying Upper- and Lowercase C

Eggs Everywhere!: Identifying Upper- and Lowercase E

Trace and Race (Recognizing Features of Letters): Alphabet Shoe Box

4th Grade Science Penguin Activities You’ll Love- Better Than a Worksheet!

Hello, 4th grade teachers!

Welcome to The Science Penguin. We are here to simplify and streamline your teaching of 4th grade science.

We’ve got you covered with phenomena-based units, interactive notebook templates, task cards, sorts, digital activities, stations, and slides.

We have so many great resources that I will simplify the search so you can save time.

Let’s begin!

🧠 Know Your 4th Grade Science Standards

NGSS:  California, Oregon, Nevada, Washington, Hawaii, New Mexico, Kansas, Arkansas, Illinois, Michigan, Iowa, Kentucky, Washington DC, Maryland, Delaware, New Jersey, New York, Connecticut, Rhode Island, Vermont, New Hampshire, and Maine

NGSS with a different name:  Alabama,  Arkansas, Idaho, Indiana, Iowa,  Michigan,  Nebraska,  North Dakota,  Oklahoma,  Pennsylvania,   South Carolina, South Dakota,  West Virginia, Wisconsin, and Wyoming

Nearly Identical to NGSS:  Louisiana and Montana

Similar to NGSS:  Utah and Massachusetts

Texas has TEKS (Texas Essential Knowledge and Skills). Virginia has SOL (Standards of Learning). Florida has NGSSS (Next Generation Sunshine State Standards), not to be confused with NGSS. 😅 Other states have their own unique standards.

A lack of cohesion can make planning difficult, but I am here to help you!

Science Penguin by State

📆 Free 4th Grade Science Planning Guides

The Science Penguin offers FREE day-by-day planning guides so you can visualize your entire year! 

Select your guide and I’ll email it right away!

Enter your name and email and I’ll send your free NGSS guide right over! Please use your  personal email and check your email right away  so I don’t get stuck in a district filter.

Enter your name and email and I’ll send your free TEKS guide right over! Please use your personal email and check your email right away  so I don’t get stuck in a district filter.

⭐️ Full Year 4th Grade Science Bundles

We offer TWO distinct 4th-grade bundles with a full year of lessons, including a day-by-day planning guide!

If you are in a different state that does not use NGSS or TEKS, it may be best to shop  by unit  or pick the bundle that is closest to your state’s standards. For example, Oklahoma’s standards are nearly identical to NGSS, so I recommend the NGSS Bundle.

Full year bundles are available on  TPT  and our site . 

NGSS Bundle

Teks bundle, 🔎 science activity packs.

Some teachers prefer to get just the materials they need for each unit! That’s why we designed Activity Packs for different science topics. They are available on TPT. See Science Activity Packs.

In the Activity Packs, you’ll find notebook templates, hands-on activities, stations, slides & notes, task cards, and digital activities. You will have SO much fun planning!  See all 28 topics.

Here are the 8 most popular Science Activity Packs for 4th grade.

💡 5E Phenomena-based Science Units

Are you looking to anchor your units with phenomena, incorporate content-driven STEM, and develop claims with evidence and reasoning? We have that too! Our unit plans guide you step by step through the 5E Model with rich content, photo examples, and answer keys too!

These are available on TPT.  See all Phenomena-based Units.

Here are 8 teacher favorites!

🔑 Sign up for more 4th grade science information!

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Hi, I'm Ari!

As a new teacher, I struggled to plan engaging, rigorous science lessons. Throughout my time teaching upper elementary and in my graduate studies, I discovered what worked well and developed science curriculum for busy teachers.  Now, teachers across the country use Science Penguin activities every single day in their classrooms!

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This is an exclusive library of 40+ science printables, labs, activities, and games for grades 3-6! Enter your personal email so your resources don't get stuck in a district filter!

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4th Grade Science Worksheets

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90 4th Grade Science Worksheets

Food chains and webs

All living things depend on one another for food! In this science worksheet, your child learns about food chains and uses clues to complete 3 food chains.

Friction is forceful

Friction is a force that opposes motion. In this science worksheet, your child will interpret data in a table to determine which surfaces produce the most friction.

Fruit detective

What kind of fruit is this? In this science worksheet, your child will follow the clues to determine which types of fruits are shown.

Good drugs, bad drugs

Which of these drugs would you get from a pharmacy? In this science worksheet, your child learns the difference between medications and harmful drugs.

Good microbes

Some microbes are really good for you! In this science worksheet, your child will determine which beverages contain healthy microbes.

Good vibrations

Pitch is a property of sound. In this science worksheet, your child learns about how you can change the pitch of the sound made by an instrument made out of a straw.

How does Jeremy see the book he's reading? In this science worksheet, your child learns about light reflection.

Great to be green

In this science worksheet, your child learns about the sunlight and water plants need to grow.

Holes in your jeans!

How did those holes happen? In this science worksheet, your child learns about different properties of fabrics and reads a data table to answer questions.

How 'bout them bones!

See the skeletons! In this coloring science worksheet, your child examines skeletons of a fish, a bird, and a frog and then colors in the backbones and the bones that protect the brains.

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50 Exciting 4th Grade Science Projects and Experiments

Did you know you can make plastic from milk?

Nothing gets kids more excited for science than hands-on experiments! Watch your 4th grade science students’ eyes light up when they try some of these activities. You’ll find physics, biology, engineering, chemistry, and more. These projects are easy to set up and really help drive the learning home. Get ready for some science fun!

To help you find the right 4th grade science projects and activities, we’ve rated them all based on difficulty and materials:

Difficulty:

• Easy: Low or no-prep experiments you can do pretty much any time
• Medium: These take a little more setup or a longer time to complete
• Advanced: Experiments like these take a fairly big commitment of time or effort
• Basic: Simple items you probably already have around the house
• Medium: Items that you might not already have but are easy to get your hands on
• Advanced: These require specialized or more expensive supplies to complete

4th Grade Science Fair Projects

4th grade stem challenge science projects, 4th grade motion and energy science activities.

• More 4th Grade Science Projects and Experiments

These 4th grade experiments also work well as science fair projects. Try changing up the variables to turn it into a real experiment, then form a hypothesis and find out what happens.

Blow unpoppable bubbles

Difficulty: Easy / Materials: Medium

A soap bubble you can hold in your hand? It’s true! A little glycerin makes the soap bubble layers stronger, so you can even toss them gently from person to person.

Learn more: Unpoppable Bubbles Experiment at Learning Resources

Grow crystal names

Difficulty: Easy / Materials: Medium ADVERTISEMENT

No list of 4th grade science projects would be complete without crystals! Kids of all ages love growing crystals, making this an ideal way to learn about supersaturated solutions. The classic experiment gets a new twist when you have kids shape pipe cleaners into their own names first.

Learn more: Crystal Letters at Playdough to Plato

Grow bacteria in petri dishes

Difficulty: Medium / Materials: Medium

Your students will truly feel like scientists when they perform this classic experiment. They’ll prep the dishes with agar, swab different surfaces, and see what bacteria they grow. It’s gross science, but it’s also easy and impressive.

Learn more: Growing Bacteria at Steve Spangler Science

See coastal erosion in action

Here’s a cool experiment to include in your unit on oceans. Build a miniature coastline, then see how wave action erodes the shore.

Learn more: Erosion Experiment at Little Bins for Little Hands

Erupt a lemon volcano

Difficulty: Easy / Materials: Basic

Early chemistry experiments with acids and bases are always a lot of fun. This one uses the natural acids of lemon juice and adds a little food coloring to up the wow factor.

Learn more: Lemon Volcano at STEAM Powered Family

Sink and float to explore density

Adding items like salt or sugar to water changes its density, as does the temperature itself. Turn this into a 4th grade science fair project by experimenting with different solutions and forming hypotheses about the results.

Learn more: Salt Water Density at Science Kiddo

Discover a density rainbow

Difficulty: Medium / Materials: Basic

Colorful, simple, and impressive: It’s the trifecta of 4th grade science experiments! Wow your students by layering colored sugar water as you learn about density, adhesion, and cohesion.

Transform milk into plastic

Plastic seems incredibly modern, but people have been making casein plastic from milk for centuries. In this 4th grade science project, students experiment to create the formula for the best milk plastic. They’ll be amazed at the results!

Simulate an earthquake

The ground under our feet may feel solid, but an earthquake changes that pretty quickly. Use Jell-O to simulate the Earth’s crust, then see if you can build an earthquake-proof structure for a practical and fascinating 4th grade science fair project.

Learn more: Earthquake Simulation at Teaching Science

Test Sharpie solubility

Find out if Sharpie markers are really permanent with this 4th grade science project that uses the scientific method to explore solutes and solvents.

Learn more: Sharpie Solubility at Around the Kampfire

Find out if mood rings really work

Apply the rigors of the scientific method to mood rings ! Find out what makes mood rings change color, then see if they really reflect a person’s mood.

Learn more: Mood Rings Validity Test at Education.com

Create a new plant or animal

Kids will really get into this project, indulging their creativity as they invent a plant or animal that’s never been seen before. They’ll need to be able to explain the biology behind it all, though, making this an in-depth project you can tailor to any class.

Learn more: Create an Organism at I Love 2 Teach

Investigate decomposition

Difficulty: Easy / Materials: Easy

Yup, it’s gross … so kids will love it! Seal food items in a plastic bag and experiment to see what factors affect their decomposition, helped along by a heaping dose of mold.

Learn more: Decomposition at Mystery Science

Assemble a lung model

With just a few supplies including balloons and a plastic bottle, you can make an impressive working model of human lungs. This makes a very cool 4th grade science fair project.

Explore the causes of tooth decay

They hear it from their parents all the time, but this experiment will prove to your students once and for all what can happen to their teeth when exposed to different drinks such as soda and milk. This is one of those classic 4th grade science fair projects every kid should try.

For students who love to tinker, STEM challenges can spark incredible 4th grade science fair projects. Here are some of our favorites for this age group.

Engineer a drinking-straw roller coaster

STEM challenges are always a hit with kids. We love this one, which only requires basic supplies like drinking straws . ( Get more 4th grade STEM challenges here. )

Learn more: Drinking Straw Roller Coaster at Frugal Fun for Boys and Girls

Make a wigglebot

Who knew electricity could be so adorable? Explore the science behind batteries and motors by creating a simple “wigglebot.” Experiment with weights to throw the motor off balance and create fun designs.

Learn more: Wigglebot at Research Parent

Construct a working flashlight

You’ll only need a few supplies to guide your students in building their own LED flashlights. They’ll learn how electricity travels and the way circuits work. The slideshow available through the link makes this lesson a breeze for teachers too.

Learn more: DIY Flashlight at Mystery Science

Build a hovercraft

It’s not exactly the same model the military uses, but this simple hovercraft is a lot easier to build. An old CD and a balloon help demonstrate air pressure and friction in this fun 4th grade science experiment.

Learn more: DIY Hovercraft at Education.com

Create a smartphone projector

No projector in your classroom yet? No problem! Have your students help you construct one for your smartphone using a cardboard box and large magnifying glass . They’ll learn about convex lenses and how the brain processes images too.

Learn more: DIY Smartphone Projector at The STEM Laboratory

Set up a pulley system

The science of machines never fails to fascinate kids. In this experiment, they’ll design their own pulley system to make it easier to lift an object.

Learn more: DIY Pulley at 123 Homeschool 4 Me

Design a working elevator

Engineering activities make for amazing hands-on learning. Challenge your 4th grade students to build an elevator that can safely lift a certain amount of weight.

Make a model seismometer

Explore the science of seismology and learn how scientists study earthquakes and their effects. This model seismometer is easy to build and fun to experiment with.

Learn more: Model Seismometer at Science Sparks

Conduct an egg drop

Here’s one more classic to add to our list of 4th grade science experiments: the egg drop! The great thing about this project is that kids can do it at any age, with different materials and heights to mix it up. Hit the link below to get an egg drop project designed just for 4th graders.

Learn more: Egg Drop Challenge Ideas

Demonstrate Newton’s laws of motion with balloon rockets

Who doesn’t love balloon rockets?! Your students will have a blast(off) displaying Newton’s third law of motion while learning about physics.

Many 4th grade science standards include units on energy and motion. These energy science activities offer cool hands-on ways to spice up your classroom lessons.

Flick marbles to learn transfer of energy

This experiment is a bit of a thinker: What will happen when one moving marble hits several stationary marbles sitting in a row? Flick the first marble and find out!

Learn more: Marble Energy Transfer at Frugal Fun for Boys and Girls

See energy transfer in action with sports balls

Place a tennis ball on top of a basketball and bounce them together to see how energy transfers from one object to another. This one is very easy, and kids will love seeing how high they can get the balls to bounce!

Go an on energy scavenger hunt

Emphasize the fact that energy is all around us in one form or another with this easy, free printable energy science activity. For a more advanced version, help students identify each kind of energy (kinetic, stored, heat, etc.) they find.

Learn more: Energy Scavenger Hunt at The Science Penguin

See a heat-powered windmill demonstrate convection

Heat rises, and its interaction with cooler air creates convection currents. Find out how we can put convection to work for us with this 4th grade science craft project.

Capture waves in a bottle

Here’s a quick and easy way to show wave action in a no-mess way. You don’t need to add a little ship to the bottle, but it does make it more fun!

Learn more: Waves in a Bottle at What I Have Learned Teaching

Assemble a wave machine

Turn this one into a class cooperative activity, or try it as a science fair project idea. Either way, it’s an incredibly fascinating way to demonstrate the energy science of waves.

Use a Slinky to demonstrate types of waves

A Slinky is more than just a toy—it’s also a terrific science manipulative! Use it to see waves in motion, both longitudinal and transverse.

Watch gravity beads prove Newton’s laws

You’ll need a loooooooong string of beads for this experiment. Make your own by taping dollar-store strings together, or buy a long bead garland . Pile them in a cup and get the beads going; it’s fascinating to watch inertia and gravity at work.

Learn more: Gravity Beads at Teach Beside Me

Spin marble tops to learn about inertia

Glue together marbles in a variety of pyramidal patterns to form tops, then form hypotheses about which will spin best. Afterwards, kids will have fun new toys to play with!

Learn more: Marble Tops at KidsActivities.com

Visualize the second law of motion with soda cans

Newton’s second law, concerning acceleration, force, and mass, can be a little hard to understand. This easy 4th grade science demo makes it a little easier to visualize.

More 4th Grade Science Projects and Activities

Use these cool science experiments to encourage a love of science, at home or in the classroom!

Measure a magnet’s attraction force

Fourth grade science students already know that magnets attract metal objects. In this experiment, they’ll measure to see how close a magnet needs to be to an object for the attraction to work. Mix things up with different sizes of magnets and objects of various weights.

Learn more: Magnet Measurements at Ashleigh’s Education Journey

See light refraction in action

This seems more like a magic trick, but we promise it’s science! Make colors seem to appear and disappear, change numbers into letters, and more.

Learn more: Light Refraction at Ronyes Tech

“Draw” on water with dry-erase marker

This is another one of those mind-blowing science demos that kids will want to try over and over again. Draw on a shallow bowl or plate with dry-erase markers , then slowly add water. The marker (which is insoluble in water) will float to the top!

Paint with sunscreen

Prove that sunscreen really does provide protection from harmful UV rays. Turn this into a full-blown experiment by trying different SPFs or comparing it to other creams or lotions without SPF.

Learn more: Paint With Sunscreen at Team Cartwright

Become human sundials

Choose a sunny day and grab some sidewalk chalk—your students are about to become sundials! They’ll practice measuring skills and learn about the movement of the sun across the sky.

Learn more: Human Sundial at Rhythms of Play

Mine for chocolate chips

If you’re learning about mineral resources, this quick hands-on activity is an interesting way to explore the effects of mining. Kids have two minutes to find as many chocolate chips as they can in a cookie. Will they smash it up and destroy it entirely? Pick them out one by one? This experiment can lead to intriguing discussions.

Learn more: Mining for Chocolate Chips at Sarah’s STEM Stuff

Assemble an edible DNA model

Use licorice sticks, four different-colored candies or fruits, and toothpicks to build an edible strand of DNA. Learn about chemical bonds and the helix shape, then eat your creation!

Learn more: Edible DNA Model at wikiHow

Layer an edible soil model

Digging in the dirt is fun, but it’s even more fun when you can eat the dirt when you’re finished! Create edible soil-layer models, complete with gummy worms, for a simple earth science project. ( Find more edible science projects here. )

Learn more: Edible Soil Layers at Super Teacher Blog

Turn a penny green

Experiment with simple chemical reactions as you turn pennies green using vinegar. (Don’t forget to tell students that the Statue of Liberty is green for this very same reason!)

Learn more: Penny Reactions at Buggy and Buddy

Use marshmallows to explore Boyle’s law

Seeing Boyle’s law (which relates pressure and volume of gasses) in action makes it a little easier to understand and remember. This simple 4th grade science experiment uses marshmallows to make a great visual.

Learn more: Boyle’s Law at Hojo’s Teaching Adventures

Form ocean currents

Learning about oceanography? Demonstrate how ocean currents form using warm and cold water (and a few plastic sea creatures for extra fun!).

Learn more: Ocean Currents at Life Over C’s

Understand the impact of non-renewable resources

This is a neat Earth Day activity . Discuss the differences between renewable and non-renewable resources, then have your class form “companies” to “mine” non-renewable resources. As they compete, they’ll see how quickly the resources are used. It’s a great tie-in to energy conservation discussions.

Learn more: Non-Renewable Resources at The Owl Teacher

Explore blood components

Use simple kitchen supplies to create a jar full of “blood” that includes plasma, platelets, red blood cells, and white blood cells. (You can even snack on the blood cells along the way!)

Learn more: Blood Model at Almost Supermom

Create cool colors with candy

Learn about diffusion in the sweetest way! Grab a bag of Skittles for this quick and easy 4th grade science project.

Wow them with glowing water

Your students will ooh and aah at the result of this exploratory way to show phosphors in action with a black light, different types of water, and a highlighter. The results of this experiment might surprise both you and your students!

Learn more: Glowing Water Experiment at Cool Science Experiments Headquarters

Keep the STEM excitement going with these 25 Fantastic Free 4th Grade Math Games .

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