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.

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!

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 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.

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.

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

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

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

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Future whistleblowers can learn about product safety standards with this exercise in writing and researching.

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

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.

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.

This craft is an excellent way to learn about African-American history, and it also provides fine motor practice.