Multiple-choice test questions can be confusing. Here's a toolbox of tricks and strategies to help your teen become a multiple-choice master.

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

Check out this cool science fair project idea to explore the relationship between pulse rate and blood pressure in healthy people.

Show your teen how to analyze the nutritional value of her favorite meals. She may be surprised to find out how healthy--or not--her favorite foods are!

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

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

The purpose of this science fair project is to build a basic radio.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

This project examines whether humans can intuitively grasp numeric values greater than three.

Monitor the impact learning how to play chess has an academic performance. Divide subjects into two groups compare GPA

April showers may bring May flowers, but your child can preserve the beauty of spring's bounty all year long with this simple craft project!

Study science with your first grader in this arts and crafts activity that models the reason why fall leaves change color with some paint and crayons.

Science fair project that examines the biodiversity of ant populations in various locations.

Research responsibilities of physicists, and common thinking patterns. Devise a questionnaire that measures career aptitude in physics.

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

Determine whether people can actually taste the difference between âhealthyâ cookies and the traditional version.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

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

Figure out which fruit has the most vitamin C (ascorbic acid) in this fun science project!

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.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Quench your thirst with great tasting lemonade while you explore the concepts of acid and base, and how these differ from sweet and sour.

Help your child add some flair to the family garden with pencil pinwheels!

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.