This science fair project idea produces varying pitches of sound.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

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

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Make over an old shirt that's destined for the thrift shop with this heart cut-out craft for Valentine's Day.

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

Stay active over summer vacation with this fun take on the old favorite Red Rover!

This activity teaches your third grader how to make a paper cut-out still life, in true Matisse-style.

The project determines which laundry detergent is best for cleaning clothes.

Challenge your fourth grader to try to recreate the geography of her state using just flour, salt, and water.

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

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Find out which kind of bubble wrap fares best when put in impact.

Check out this sweet recipe idea perfect for celebrating Dia de los Muertos.

Find out whether putting something on top of a plant will inhibit its growth.

The goal of this project is to create an exciting topographical map out of dough.

Create a yarn doll out of a few toothpicks and colorful string with this Guatemalan craft.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Do different types of oil mix or stack? Find out in this science fair project idea!

Teach children how to upcycle dried-out markers with this homemade paint-making activity!

Put old, worn-out picture books to work by constructing a book birdhouse, perfect for welcoming spring.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Get inspired by the great outdoors and help your child make a quirky jewelry tree out of chopsticks!

Find out whether packaged seeds actually do expire in this new science fair project idea.

Kids will get a kick out of shopping for discounted "kicks" with this creative math game that focuses on percentages.

Create cake pops in shaped like eyeballs in this extra sweet, gross-out Halloween baking activity!

Check out this fun and easy-to-play guessing game that will build your child's geometry vocabulary.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!