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Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

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

Here are six fresh ideas to liven up your teen's study time, and involve the whole family at the same time!

Illustrate the idea of light refraction with this exciting and mystifying experiment.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Does your child love pretend and need practice with letters and the sounds they make? Get cooking! This activity is fun and builds key reading skills, too.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Are you looking for a new way to help your fourth grader celebrate New Year's Day? Try this Flash Back Book!

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Spend an afternoon outdoors and add a personal touch to clothes or other items of fabric by learning how to tie-dye.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Fly into some rainy day fun with a cardboard airplane project. Making paper airplanes is fun, but you can add a new twist by using recycled materials instead.

Crowned with orange cream cheese frosting and studded with chocolate chips, these pumpkin muffins make a delicious fall treat.

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.

By tracking nutritional information from candy wrappers, your teen can use statistics to find which treats offer the fewest tricks on Halloween!

Determine the maximum distance traveled by projectiles launched at an angle. Use some cool math to figure out at which angle your projectile will go farthest.

This science fair project idea explores if an LED light can be powered by vegetables and/or fruits.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

Even your first grader can get involved in the lighting of the Kwanzaa Kinara with this clever flameless Kinara project!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Make a peace dove to commemorate Black History Month and hang it in your home as a quiet reminder of the spirit of the movement.

Help your little builder move up in the world with this recycled cardboard castle that's just the right size for a young king and his loyal stuffed subjects.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Kids can jazz up their checker sets by transforming boring round checker pieces into baby chicks and eggs in this 1st grade arts and crafts activity.

This science fair project studies which color(s) of flowers butterflies & bees are attracted to and if color plays a role in flower selection for pollination.

Here's a math activity that uses coin riddles to help your third-grader improve his coin-counting and logical thinking skills.