This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

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

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

In this design challenge, your child will make a bottle rocket using typical household items.

This science fair project idea examines the reason boats are shaped and engineered.

Construct batteries that make electricity from fruits with this fun science fair project.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

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.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.