This science fair project idea investigates which objects float and sink in honey, water, and oil.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

This science fair project idea produces varying pitches of sound.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

The purpose of this science fair project is to build a basic radio.

Learn with makes water molecules work with this fun and easy science activity!

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

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.