How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Learn how to use the Punnett Square to predict the gene combinations of dominant and recessive traits in this fun and easy genetics science project!

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.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

In this science fair project, students examine how temperature affects sugar transport within a plant.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

This fascinating science fair project explores eye color genotypes.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

This science fair project idea studies past and current fads and trends.

Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This project examines the phenomenon of using a mirror to trick a person's brain into experiencing sensations in body parts not actually affected.