This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Find out whether matte or shiny nail polish lasts longer.

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

This science fair project idea explores which fruit molds the fastest.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

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

Test your friends to find out if you can replicate the placebo effect's incredible results.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

This project explores ways to prevent static electrical shocks.

In this science fair project, students use the streak test to tell minerals apart from each other.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

Check out this cool science fair project on identifying rocks and minerals for kids.

Here's a science activity to help your child investigate how seeds are designed to travel.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.