Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Does nail polish really slow the growth of nails? Explore in this science fair project idea.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

Bring the magic and mystery of the night sky to the light of day with this fun constellation art project!

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

This project compares different liquids and the freezing, melting and boiling points of liquids.

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.

This high school science fair project investigates if small changes in your diet alter the pH of your saliva.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Will people perceive your intelligence differently depending on your hair color? Find out in this science fair project idea!

This experiment evaluates whether there is a relationship between grade point average (GPA) and dating status.

This experiment evaluates whether the phenomenon of "choice blindness" occurs more often with men or women.

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

If your child aspires to be the next Frank Lloyd Wright, we've got some tips on building sand castles that last.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

The objective of this experiment is to evaluate the effects of acid rain on plants.

Discover whether a metal will expand under hot water.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”