Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

Science fair project in which you will stage an election campaign to determine whether people are more swayed by a positive ad or negative ad.

Here's a simple science activity that will help your child better understand how wells bring us water.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

In this experiment we will be determining whether birds prefer certain colors of seed.

In this design challenge, students will be tasked with creating a bouncy ball polymer!

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.

This experiment evaluates how a diet that is rich in "mood-enhancing" foods affects the way people feel over several weeks.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Learn how to use the Punnett Square to predict the gene combinations of dominant and recessive traits in this fun and easy genetics science project!

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

This science fair project idea quantifies the effect of specific food sources on red worm (Eisenia foetida) livelihood.

Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.

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

How well can people recall what they have observed. Test your knowledge in this fun experiment.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

This cool music science fair project idea has kids determine the effect of music on memory. Can music improve our cognitive abilities? Why or why not?

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.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.