Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

This science fair project idea investigates the difference in reaction times between boys and girls.

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

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

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

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

This science fair project idea explores substances that cause a bubble to last longer.

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

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

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

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.

Make a backbone model to explore human anatomy and life science.

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

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

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.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

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

This science fair project idea investigates if webbed feet help a duck (and others) swim.

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

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

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

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.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.