This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

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

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This science fair project idea explores whether talking to a plant will help it grow.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Help your kindergarten science maven explore the water cycle without getting everything wet.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

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

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 examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

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

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

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This science fair project idea explores substances that cause a bubble to last longer.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project idea provides evidence that air is everywhere and takes up space.

In this project, a mnemonic is used to test how it increases memory.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

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

Discover which fabrics shrink the most in the wash and why.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.