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

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

This science fair project idea investigates how the shape of an object affects drag.

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

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

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

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

The objective of this science project is to determine the length of time for different seeds to germinate.

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

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

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.

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

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

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.

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

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

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

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

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.

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

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?

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