Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

This science fair project idea explores the egg's thin membrane.

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

Examine the effect of pressure on carbonation in soda.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Test whether plants can grow without sunlight and water.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

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

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

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!

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

In this experiment we will be determining whether birds prefer certain colors of seed.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

This science fair project idea investigates whether plants can survive being frozen.

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

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

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.