This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.

This fun science fair project for 8th grade demonstrates what Kepler's 3rd law predicts about a planet's orbital period and its distance from the sun.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Develop your child's green thumb with this easy planting activity. These plants are guaranteed to grow fast and are "brown-thumb" proofed!

Find out whether packaged seeds actually do expire in this new science fair project idea.

This science fair project idea determines if the color of light affects the growth of plants.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

First graders are learning to think like scientists. What better place to start, then by raising tadpoles? This hands-on activity explores science in action!

This experiment will explore if magnetism has any effect on the regeneration abilities of flatworms.

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

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.

This project examines the amount of saltwater required to affect the growth of plants and subsequent effects on growth and development.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

This project explores the interaction between air pressure and playing surface in determining a basketballâs bounce.

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science project involves comparing the relative effectiveness of salt, pepper and dehydration in food preservation.