Find out whether putting something on top of a plant will inhibit its growth.

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?

Learn about our cognitive capacity of attention and to learn about factors that influence attention.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

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.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

This experiment investigate whether children in different age groups learn better from a computer program or a human teacher.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

Learn about the factors that influence group conformity.

Think about the adaptive utility of an important aspect of our physiology.

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

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

This science fair project idea investigates whether plants can survive being frozen.

What colors can dogs see? Do they only have black and white vision, or can they see other colors too? Find out in this cool science experiment!

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Determine the maximum distance traveled by projectiles launched at an angle. Use some cool math to figure out at which angle your projectile will go farthest.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

Determine if it is easier to memorize colors, words, words in phrases, pictures or numbers. Determine at when retention rate in each category is the best.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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?