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.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

This science fair project idea investigates if fats add to the flavor of food.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

This science fair project idea explores the different properties of matter.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This science fair project idea determines what household items are good conductors of electricity.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

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

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.