This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

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

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

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 investigates how color affects temperature.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

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.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

This science fair project idea experiments with spinning color wheels and optical illusions.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

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

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project idea explores the egg's thin membrane.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

This project determines what category of person is most likely to be ticklish.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.