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?

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.

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

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 experiment evaluates how much influence an enticing package has on childrensâ willingness to try a new snack.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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.

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.

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.

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

This science fair project idea provide quantitative data about how well the use of ASL ( American Sign Language) works in communicating with babies.

This science fair project idea explores the fastest average speed a human can talk.

This middle school project examines the strength of horizontal versus vertical pointing eggshells.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

This science fair project examines whether ocean water can be made safe to drink.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.