Here's a green arts and crafts activity that will get your preteen into the holiday spirit: transform an old magazine into a miniature Christmas tree!

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Rid your family of that pile of old Christmas cards once and for all! Show your child how to create a nifty 8-sided ornament using his favorite holiday images.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

This handprint angel adds some sparkle to Christmas. Watch as your child's handprints turn into beautiful angel wings.

Create addition problems using critical thinking skills in this fun second grade math card game.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

This activity will put those Halloween treats to good use by using candy corn to help your child with her subtraction skills.

Duct tape doesn't only fix household problems, it also fixes the "I'm bored"s in this art activity.

Show off your team spirit by creating a festive baseball pennant for your favorite team.

Cut out lots of geometric snowflakes and use them for creating colorful snowflake prints perfect for decorating any home this winter season!

This Christmas collage lets your child learn shapes, cubist art of Picasso and have fun during the holidays!

Help your child use an old water bottle and a few other household materials to make her own eco-friendly pal!

This experiment will explore if a randomly iterated algorithm will result in a pattern.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Is your child an amateur origami master? Reach the next stage of paper folding genius with this origami heart!

Your kindergartener will be delighted to refine his motor and conceptual skills as he creates his own Maccabee shield in honor of the Maccabee revolt.

Here's a hands-on activity that helps your child understand the concept of "circumference."

This fun card game is a great way to help your child increase his speed and accuracy when solving integer problems.

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

Learn about the architecture of Asia by building your very own model of a pagoda!

This easy paper craft looks like the ancient Moai sculptures of Easter Island.

Let your young chef whip up some cheer in the kitchen with these tasty and adorable chocolate trees snacks.

Make your own architectural masterpiece with supplies from the pantry. Your temple may not be as impressive as the real thing, but it'll be twice as delicious!

Get a cool science project idea on a photovoltaic cell and explore the various factors that affect the energy output of the photovoltaic cell.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

This science fair project idea determines which flower lasts the longest.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

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