Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

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

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!

Make sourdough bread...and learn some colonial history and modern science in the process!

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

This science fair project idea experiments with spinning color wheels and optical illusions.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.