How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

Start your toy engines -- this is going to be a fast and friction-filled race!

This experiment explores the question of whether age and/or gender play a role in people's ability to remember dreams.

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!

Choose a timeline to live without technology. Keep a journal of all the issues encountered. What are the benefits and cons of modern technology?

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

This science fair project will investigate a type of sustainable development project.

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

This science fair project idea researches the effects of acid rain on plant growth.

Science fair project that explores the natural process of limestone formation.

This science fair project idea compares biodiversity between drops of water.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this science project, the center of gravity is explored.

This science fair project idea attempts to develop a new or improved eco-friendly packing material.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

This science fair project idea deals with the qualities of shade on a sunny day.

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

This science fair project discovers the properties and uses of sand and develops new or improved methods, techniques, or products involving sand.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.

This science fair project idea determines the properties of rainwater and examines the techniques for harvesting rainwater.

This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.

This science fair project idea attempts to prevent another tragedy in Gonaives and encourages technological advances against flooding.

This science fair project idea examines liquids of different densities.