This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Use sticks and stones to create create an outdoor version of tic-tac-toe!

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Help your child plant a "tea garden": a garden made of herbs for making teas.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This science fair project investigates why the number of visible stars changes from place to place.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

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.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

How well can people recall what they have observed. Test your knowledge in this fun experiment.