This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

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

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

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

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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 demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

Help your kindergarten science maven explore the water cycle without getting everything wet.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Teach your child how butter is created by shaking up cream the old-fashioned way.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Instead of the traditional egg hunt, try this creative variation that will result in a beautiful Easter garden.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Science fair project that examines condensation and the conditions needed in order for dew to form.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.