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.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

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 idea produces varying pitches of sound.

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

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

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

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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.

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.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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!

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

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

This science fair project idea explores whether talking to a plant will help it grow.

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.

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.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

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!

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

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

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

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

In this fun activity, your child will create their very own solar oven to bake s'mores!

This science fair project idea experiments with spinning color wheels and optical illusions.