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Fourth Grade Science Activities and Experiments

Our 4th grade science activities and experiments include enlightening physics demonstrations, cool electricity projects, fun food experiments, and more. For more in depth science projects, take a look at the Science Fair Project Ideas section of the site.

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Fourth Grade

Science

Volcano Project

Your child will be hooked on chemistry after she builds a model volcano by combining an acid and an alkaline substance.

Homemade Lava Lamp

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Density Demonstration

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Set Up a Solar System of Kids

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

Make Your Own Soap

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Simple Machines at Home

Give your budding young observers a chance to discover simple machines at use in their own home.

Electric Science: Make a Battery!

Try this chemistry experiment with your curious kid and get some "shocking" results!

Taste Test Science: Fool Your Tongue!

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Recycling Christmas Lights

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

Make a Sand Clock

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

Do-It-Yourself Earthquake

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Make a Pinhole Projector!

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Exploding Marshmallows!

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Make a Homemade Hand Warmer!

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Air Science Experiment

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Make a Hovercraft!

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

How to Make a Water Wheel

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Crystal Lollipops

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

How to Make a Weathervane

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

Layers of the Earth Project

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

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