What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

Is it a square or a circle? See if you can trick your friends with this zany science project!

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

This cool electricity project teaches kids how connecting batteries in series vs. parallel circuits can contribute to different levels of voltage and amperage.

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

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.

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 science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

This science fair project idea experiments with spinning color wheels and optical illusions.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

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

What colors can dogs see? Do they only have black and white vision, or can they see other colors too? Find out in this cool science experiment!

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.