Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

This basketball project explores the best way to make the perfect shot every time.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

Science fair project that creates a pamphlet to help others learn about Epilepsy, its causes, symptoms and treatments.

Score a bull's eye with this cool science fair project on horizontal projectile motion. Guide a marble to its target and predict its trajectory using math!

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

This science fair project idea quantifies growth of seedlings at various pH levels.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Compare different remedies for cooling the mouth after eating spicy food.

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

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Test for a correlation between perceived color and heart rate. Using a stethoscope and stop watch, measure the heart rate (beats per minute) of volunteers.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

This experiment will explore if magnetism has any effect on the regeneration abilities of flatworms.

This science fair project explores how salt and sugar affect the melting rate of ice in water.

This experiment tests which gender is better at catching how a magician performs his tricks.

Show your teen how to make her own beeswax lip balm. It's one of the simplest do-it-yourself activities, and it's fun to make!

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Enlisting the cooperation of your teenager to help prepare your household for an emergency is the perfect way to get set, fast.

Check out is fun science fair project idea to learn about heat transfer and why certain insulating materials are more practical than others.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

This experiment will use computers to examine how the famous Mandelbrot set can be manipulated in fractals.

This clay "painting" activity encourages and supports creative development and critical thinking skills.

Determine if it is easier to memorize colors, words, words in phrases, pictures or numbers. Determine at when retention rate in each category is the best.