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Fourth Grade Science

Fourth grade science resources like these make even the reluctant kid scientist curious about the way things work. From making a homemade lava lamp to building a volcano to demonstrating density with an egg, we have teaching fourth grade science covered. If kids are ready to expand upon their understanding of scientific concepts, browse our offering of fifth grade science resources.

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Fourth Grade

Science

How to Inflate a Balloon Using Baking Soda and Vinegar

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Homemade Lava Lamp

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

Why Do Apples Turn Brown?

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Self-Inflating Balloons

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Do Plants Need Water?

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Which Food Will Mold the Fastest?

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

How to Make an Anemometer

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Does The Color of Light Affect Plant Growth?

This science fair project idea determines if the color of light affects the growth of plants.

Life Science Crossword: Plant and Animal Cells

Kids learn important plant and animal cell vocabulary as they plug the words into their correct spots and complete the puzzle.

Reaction Time: The Ruler Drop Test

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Bust That Rust!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Food Chain Pyramid

Get familiar with this food chain pyramid, from carnivores and herbivores to producers and decomposers; each group has a role.

Thermal Conductivity of Metals: Which Metal Is the Best Conductor of Heat?

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Magnets and Temperature: Does the Temperature of a Magnet Affect its Strength?

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

The Best Stain Remover for Clothes: Testing Laundry Stain Removal

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Blindfolded Taste Test

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

A Single Movable Pulley and Mechanical Advantage

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Sugar Crystallization

This science fair project idea explores the different properties & interactions of sugar molecules.

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.

Making A Rock In A Cup

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Arch Magic: The Unbreakable Egg

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

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