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

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

This science fair project evaluates which sense produces the fastest response time: hearing, touching, smelling or seeing.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

How does light affect plant growth? Do different colors of light work better than others? Find out in this classic science fair project idea.

This science fair project idea determines which flower lasts the longest.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

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.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

In this science fair project, students test how objects float and sink in liquids of different densities.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This experiment explores the trend of reactivity in the alkaline earth metals as you go down the second column of the periodic table of elements.

The objective of this experiment is to evaluate whether funny advertisements are more or less effective than serious advertisements.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

This experiment investigates whether paper color influences people's ability to remember the information that they read.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

Demonstrate and describe acid-base reactions of baking soda and baking powder by making pancakes.