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.

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

This science fair project idea produces varying pitches of sound.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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.

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

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

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

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

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

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

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

The goal of this project is to create an exciting topographical map out of dough.

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

This science fair project idea examines which type of insulation holds in the most heat.

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

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

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

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

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

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

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.