Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Examine the connection between temperature and chemiluminescence.

Science fair project that determines whether spreading a moss soup over an area increases moss growth.

This project examines whether more expensive golf balls translate into better results on the golf course.

This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

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.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Get a fun science fair project idea for high school students on the basic and current information on the process of propulsion.

Determine how wind speed affects the stability of a kite and the ease of getting it into the air.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

In this project, the fingerprints of family members are compared to determine if people from the same family have similar fingerprints.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

Construct batteries that make electricity from fruits with this fun science fair project.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.