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.

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.

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.

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.

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.