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

This science fair project idea investigates whether air has mass and weight.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This science fair project idea determines which method of hand cleansing is the most effective.

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 project, a basketball containing different psi is dropped to see how well it bounces.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

The objective of this science fair project is to investigate salt water density.

This science fair project idea explores how length affects the weight a bridge can hold.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

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 objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science fair project idea demonstrates that plants give off water.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

In this project children practice the scientific method while playing with puffy paint.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

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

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

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

This science fair project teaches students about wilting and browning of salad greens.

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?

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.