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

Make a Hovercraft!

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Volcano Project

This classic children&#39;s game demonstrates how sound travels through air vs. through a solid.

How Sound Travels Through Air and Solids

This science fair project idea produces sounds by creating vibrations using different objects.

Creating Sound Through Vibrations

Explore scientific concepts with this experiment that introduces kids to the scientific method!

Bounce an Egg

Mad scientists! In this lesson, your students will explore electrical circuits and engage in a hands-on activity to create them. They will identify the differences between parallel and series circuits.

Mad Scientist: Electric Circuits

Teach your child how butter is created by shaking up cream the old-fashioned way.

Make Your Own Butter!

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Craft Fizzing Bath Soaps

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Homemade Frozen Yogurt

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Physics Magic Trick

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

Fruit Popsicles

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Homemade Submarine

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Nice Shades! How Light and Color Affect Sight

An home science experiment for older students that teaches about the science behind heat.

How to Make a Whirligig

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

Beautiful Bubble Iridescence

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

How Does Sound Travel?

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Candy Science Experiments: Toffee!

When you see those sunscreen "protection levels," what does that really mean?  Try this experiment to find out.

Sunscreen Experiment

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

Skin Science!

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Mini Waterfall

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

How to Make a Water Wheel

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