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This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

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!

This science fair project idea investigates whether plants can survive being frozen.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

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.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Word color association is just a fancy way to talk about the way we connect colors with words.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

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

Learn how different types of soil affect how animal tracks form in this experiment!

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

In this science fair project, young children notice and track changes in trees throughout the year.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Construct and experiment with a periscope using reflected light rays to gather an image.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

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?