Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Summer is a great time to work on pre-kindergarten skills that will serve your child well in her first year at school, while having some fun in the sun!

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

Kids conduct a simple science experiment to see if seeds can grow without soil in this simple kindergarten science activity.

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

Have your child make a special mobile inspired by the weather outside. Learn about seasons, the environment, and art in 3D.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

This science fair project idea determines whether dogs can be trained faster using a food reward or praise.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.

In the mood for a bit of silly science? Help your child create a truly one-of-a-kind planter out of a potato head!

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This project examines the vulnerability of fruit flies, Drosophila melanigaster, to irradiation. Will exposure result in mutations?