Make a periscope with milk cartons and mirrors! This preschool activity is great for playing secret agent and learning simple physics.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Do suds equal more clean or does a sud-free cleaning agent works just as well or even better?

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

What does yeast eat? Sugar, of course. But yeast also has some powerful enemies in the form of antifungal agents! Kids test them out in this fun yeast lab.

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?

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

Discover which method for odor removal words the best for stifling refrigerator odors.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

This science fair project idea determines if pancreatic lipase can break down lipids on its own or does it require the assistance of digestive bile salt.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Demonstrate and describe acid-base reactions of baking soda and baking powder by making pancakes.

The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

What kind of fabric holds dye best? How can you improve a dyed fabric's colorfastness? In this colorful project, test colorfastness using mordants and bleach.

Learn about emulsification and bile's roles in digestion, and investigate how the digestive enzyme lipase breaks down lipids.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science fair project idea examines whether people can decode scrambled messages.

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.