In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Invite your second grader to help you measure and mix these fresh, cool concoctions!

Pfeffernusse are spicy and sweet Christmas cookies from Germany. Make a batch of traditional pfeffernusse this holiday season.

Here's a place mat your second grader can create, based on the classic frontier tradition of patchwork quilting.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?