When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

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

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

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

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

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

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

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Help your child learn about animal classification with this fun and delicious activity.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

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

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.