This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

This science fair project idea produces sounds by creating vibrations using different objects.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

This science fair project idea identifies trees using a dichotomous key.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science fair project idea produces varying pitches of sound.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

This science fair project idea investigates the hardness property of minerals.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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

Find out which kind of bubble wrap fares best when put in impact.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

This science fair project idea determines what household items are good conductors of electricity.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

This science fair project idea examines the reason boats are shaped and engineered.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Take a dive into the candy jar with this yummy science experiment.