This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This classic children's game demonstrates how sound travels through air vs. through a solid.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

Using a toy race car kids create a visual model of the Doppler Effect.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

Word color association is just a fancy way to talk about the way we connect colors with words.

This project examines whether people's taste perception is influenced by what they see.

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

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.