Check out this fun science fair project idea to explore the process of diffusion in a cell and learn the difference between osmosis and diffusion.

This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

This science fair project determines whether the types of plants growing in a Pacific Northwest rain forest environment are influenced by the soil acidity.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

In this project students determine which instruments composers use to create birdsongs and birdcalls in classical music.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Find out whether matching resonant frequencies can cause objects to shatter.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

Free science fair project idea examining how different types of water affect plant germination and growth.

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

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

The objective of this science fair project idea is to explore which brands of "anti-fade" shampoos work the best to keep hair color looking fresh.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

Find out whether matte or shiny nail polish lasts longer.

Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.

This experiment will explore whether adding different substances to a gel affects its strength.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

Study the anatomy of the brain and the functions of the corpus callosum. Research split brain surgery and its impact on advances in neuroscience.

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.