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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.

This science fair project idea identifies trees using a dichotomous key.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Discover how and which salt melts ice the quickest.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This science fair project idea produces varying pitches of sound.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

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.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This science fair project teaches students about wilting and browning of salad greens.