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In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Demonstrate if cooking destroys all bacteria that is present in raw meats such as salmonella.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

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.

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!

This science fair project idea explores the fastest average speed a human can talk.

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

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

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

This science fair project teaches students about wilting and browning of salad greens.

Explore whether pianists have the tendency to type faster than non-pianists.

Science fair project about different digital image file types, compares different encoding algorithms used to compress the data.

Want to give your teen some insight into the scientific method and get the house cleaned? This activity promises both!

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

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

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

In this science fair project, we will test how different kinds and shades of hair respond to bleach.

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Design and build a scale model representing living tree architecture. Then build a full-size version using one or more lives trees, and test your creation.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Your child can create his own texture tree, experimenting with design during the process. The result will be a beautiful addition to your holiday decorations

Science fair project that examines the benefits of the plant enzyme: pectin methyl esterase (PME). Where is PME found in the plant? What does it do chemically?

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.