What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

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.

This science fair project idea produces varying pitches of sound.

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

Discover whether a metal will expand under hot water.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

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

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

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

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

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Learn all about balance and motion as your child designs a corn maze!

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.