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

Topped with roasted pumpkin, prosciutto, herbs, and feta, these pita pizzas are a healthy, seasonal alternative to your classic pie.

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

This fall, bake some festive caramel apple cupcakes with your second grader and help her build her math skills while you're at it!

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?