Conjure up a few ghosts to give your house that spooky Halloween feel. All it takes is a bare foot, white paint, and a little bit of craft magic.

Introduce your fourth or fifth grader to volume by having him build rectangular prisms, and then count each sugar cube to check his volume calculations.

In this math and science activity, help your middleschooler learn about proportion and measurement with just her shadow and a tape measure!

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

On a sunny day, make some great art and start a conversation about states of matter in the process with this chalk paint project.

Find out which type of sponge holds the most water.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

Read on this high school science fair project idea to get basic information on the process of heat transfer and the conditions under which the transfer occurs.

Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.

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

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

More height, more steep, more speed! This science project investigates whether there is a correlation between the height of the roller coaster and the slope.

What happens when colored beams of light mix? You might be surprised.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

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

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

Air resistance is a crucial factor when designing a parachute. In this science fair project, students find what type of material works best as a parachute.

Children will love this arts and crafts activity. Write an "invisible" message in white crayon, then paint over it to reveal the secret!

Inspired by Charles Kaufman's crushed can art, this activity lets kids make their own unique works of art using, you guessed it, crushed cans and paint!

In this activity, your students will research a favorite superhero and discuss which of their powers are real and not real. Your students will be able to complete a simple research chart and graphic organizer.

This science fair project idea outlines the practical applications of particular origami folding techniques.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

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

Science fair project that examines the effects of soap on the surface tension of water. How does soap affect the surface tension of water?

This experiment examines if space objects become round after reaching a certain mass.

Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.

Ever wonder how those kooky kazoos work? Get to know the science behind this silly instrument by making your very own kazoo!