In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This project compares the strength of one, two, and three-ply toilet paper.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Do you think heat can affect a plant's growth rate?

How do organic materials become soil? This science experiment measures what materials biodegrade.

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

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

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

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.