What can you do with hair after its cut? This science project teaches you practical uses for human hair.

This science research project challenges students to think of more effective lobster farming methods.

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.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Will the shape of an ice cube impact how fast the ice melts?

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

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

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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.

This science fair project idea researches the effects of acid rain on plant growth.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

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.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

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.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

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

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

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

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

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.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.