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

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 experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut 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?

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

People have favorite flavors, but what about ants? Which ant food is the most popular?

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

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

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.

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

In this activity, your child will be challenged to make a tower using paper cups.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

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.

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.

In this activity your child will create their very own marble maze!

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

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

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

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

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

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

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.