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.

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

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

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

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

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

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

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.

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

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?

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

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

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.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

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

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

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

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Help your kindergarten or first grade child use his creativity to make a beautiful magnetic patterned structure while discovering the wonders of magnets.

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

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

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.

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

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

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