This science fair project idea examines whether boys and girls differ in reflexes.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

Plants and light seem to be good buddies, but how far does the friendship really go?

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

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

Science fair project that examines the relationship between fluid flow rate, pressure, and resistance.

Construct and experiment with a periscope using reflected light rays to gather an image.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Science fair project that determines how your mirror image differs from your actual image and how virtual images are constructed.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

This science fair project idea investigates how images are influenced by changes in light.

Learn about the factors that influence group conformity.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

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

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

This science fair project idea determines which flower lasts the longest.

Here's a simple craft activity that can help your youngster better visualize the life cycle of a frog as a circle.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Science fair project in which you will stage an election campaign to determine whether people are more swayed by a positive ad or negative ad.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

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

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

Research information on vitamin content in foods, Examine the effect of vitamins, test organic samples of fruits, meats, grains for vitamin content.

In this science fair project, students make their own rain gauge to measure rainfall.

This science fair project studies which color(s) of flowers butterflies & bees are attracted to and if color plays a role in flower selection for pollination.