Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

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

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

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.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Examine the impact of insecticides on plant growth.

This experiment examines if space objects become round after reaching a certain mass.

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.

This experiment will explore whether fractals really repeat themselves infinitely.

This science fair project idea investigates how the shape of an object affects drag.

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

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

Check out this cool science fair project idea to learn why it is important for kids to eat healthy foods like fresh fruits and vegetables.

In this fun experiment, we'll find out how color affects heat absorption!

In this science project, baking powder and vinegar are used to simulate the action of a fire extinguisher.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

This science project challenges high school students to study the linguistic evolution of text messaging.

Science fair project that tests whether cats have a preference for organic food.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

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

Learn how different types of soil affect how animal tracks form in this experiment!

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.