This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

In this project children practice the scientific method while playing with puffy paint.

This experiment investigates if small changes in your diet can alter your basal body temperature.

With this activity, not only will you be experimenting with giving accurate information, you'll also teach your child how to write good scientific procedures.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Does fear cause the same physiologic responses in men and women? This experiment measures people's blood pressure and heart rate while watching a scary movie.

This experiment investigates whether paper color influences people's ability to remember the information that they read.

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This experiment evaluates how much influence an enticing package has on childrensâ willingness to try a new snack.

Scavenger Hunt! Check out this fun science fair project idea to explore the difference between opaque, translucent, and transparent objects around your house.

Looking for a fun earth science project on continental drifts? Check out this fun science fair project idea to explore how Pangaea may have broken up.

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This science fair project collects information on the Internet about yourself and others.

This experiment uses Rosenberg's Self Esteem Scale to evaluate if there is a correlation between family size and self esteem.

This project examines which type of dance burns the most calories.

This science fair project evaluates the suggestibility of males versus females in copying the actions of those around them.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Use dirt and different colors of craft sand to make unique layers in a clear plastic cup to represent the layers of the Earth.