This project examines the amount of saltwater required to affect the growth of plants and subsequent effects on growth and development.

Try this arts and crafts activity with your preschooler: make bread from yeast dough to teach her about the science behind bread baking.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

This project involves the development of a website using free software online to promote the value of science.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

Make edible amber fossils with your second grader to explore the fascinating world of science!

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

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Investigate which substances are most effective at removing salt from water.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Here's a science and nature activity to help your kindergartener get outdoors and learn about the structure of leaves.

This interactive project invites science fair-goers to participate in examination and recording to demonstrate the importance of firsthand observation.

Find out whether freezing or refrigerating destroys more bacteria. This is essential to consuming safe and germ-free food.

This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.

This project explores how well couples convey complex emotions such as envy and pride to one another solely through the sense of touch.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Science fair project that cultivates slime mold and monitors the stages of its development.

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