In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Use popcorn in this tasty experiment to explore the five senses at home with your kindergartener!

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

Start your toy engines -- this is going to be a fast and friction-filled race!

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!

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

This super fun science project, perfect for young children, combines crafts, dressing up as animals, outdoor play, and life science learning.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

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 demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

This science fair project idea examines the reason boats are shaped and engineered.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

This science project teaches students to classify different shapes of leaves.

Construct batteries that make electricity from fruits with this fun science fair project.

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Science fair project that determines whether mass and weight are the same or different.

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

This science fair project teaches students the differences between fruits and vegetables.