Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

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.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This activity challenges your student to use spatial reasoning and computational thinking to program multiple robots.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

This science fair project idea explores the different properties of matter.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This science fair project idea investigates how magnetism can defy the force of gravity.

Will the shape of an ice cube impact how fast the ice melts?

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

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

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.