This science fair project idea is develops new or improved paper making techniques and encourages recycling.

Have your child kick off their summer vacation by making a miniature water slide!

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

In this design challenge, your child will create a parachute for a small toy using typical household items.

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

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

In this design challenge, your child will make a bottle rocket using typical household items.

In this fun activity, your child will create their very own solar oven to bake s'mores!

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

In this project students experiment with making music using only glasses of water.

In this experiment you will replicate the mummification process by making a hot dog mummy.

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

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

This science fair project investigates why the number of visible stars changes from place to place.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

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.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

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

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Construct and experiment with a periscope using reflected light rays to gather an image.

This science fair project idea explores whether white light can be separated into different colors.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.