Generate gas from garbage. The purpose of this science fair project is to simulate how landfills generate gases that can be used to create energy.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

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

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Score a bull's eye with this cool science fair project on horizontal projectile motion. Guide a marble to its target and predict its trajectory using math!

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

Science fair project that creates a pamphlet to help others learn about Epilepsy, its causes, symptoms and treatments.

This science project idea examines the effect of microwaving on various objects.

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

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Take a dive into the candy jar with this yummy science experiment.

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

Think about the adaptive utility of an important aspect of our physiology.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

This science project researches the correlation between barometric pressure and wind velocity.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Determine how good we are at direct and indirect observation.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

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