Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

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.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

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

The Galileo inclined plane physics experiment was one of the first ways scientists calculated acceleration due to gravity. Do it yourself in this project!

The objective of this experiment is to find out if cooked beans grow faster, if at all, than uncooked beans.

Science fair project that determines the correlation between the ability of selected materials to conduct heat and a material's density.

This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.

By dropping a magnet through a copper tube, kids observe the cool (and bizarre) braking effect produced by the eddy currents predicted by Lenz's law.

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

This science fair project idea examines whether people can decode scrambled messages.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

In this activity, your child will be challenged to make a tower using paper cups.

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

This science fair project idea examines the reason boats are shaped and engineered.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.