This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

Help your child create her very own invention just like Leonardo da Vinci as she develops her critical thinking skills and lets her imagination soar!

Test your friends to find out if you can replicate the placebo effect's incredible results.

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.

Explore the relationship between personality traits and birth order effects.

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

Here's how you and your teen can stage your own formal debateâbeyond arguing why chores are unethical! Formal debates improve teens' critical thinking skills.

Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

Here's an activity that uses second-semester high school algebra to determine which pizza gives you the most bang for your appetite. Here's how to get started:

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

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.

Explore the neural and mental mechanisms at play in mental imagery.

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.

Help your children practice their presentation skills by helping them create their very own show called "The Daily News."

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

Let your child help you create a fire escape plan poster to hang in the house in case of an emergency!

With friendship bracelets, facials, fortunes, and fondue, this slumber party will be a great kick-off to 2010.

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

introduction to organic chemistry. study what happens when polymer molecules are mixed with borax solution.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

Make thinking about college fun by working with your teen to design and plan a Road to College board game.

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

This project is about after-images and what possibly affects them.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

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