This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

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

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

This science fair project idea investigates how the shape of an object affects drag.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

This science fair project idea explores how length affects the weight a bridge can hold.

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.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

The purpose of this science fair project is to build a basic radio.

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.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

This project determines what category of person is most likely to be ticklish.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

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

Cleaning can be a chore, but not with this sudsy experiment!

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

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

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.

This science experiment tests if dog saliva can really help heal wounds.