Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

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

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

This project examines various algorithms to determine the ideal algorithm for a strategy game.

Learn about the growing app design field by designing a new or improved app for smartphones.

Making your own glass cleaner is easy, effective and inexpensive!

In this project students experiment with making music using only glasses of water.

This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

This science fair project idea explores how far the average human can see.

This science fair project idea explores whether dogs do look like their owners.

Thoroughly research image search engines. Consider possible improvements for visual search engines. Help design better image-matching engines.

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!

Have your child make a special mobile inspired by the weather outside. Learn about seasons, the environment, and art in 3D.

This experiment will investigate whether reward or punishment is more apt to motivate people.

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

This experiment strives to determine if tracking of conservation habits will lead to reductions in a family's electricity and water bills.

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

Show your teen how to analyze the nutritional value of her favorite meals. She may be surprised to find out how healthy--or not--her favorite foods are!