Here's a hands-on activity you can do with your fourth-grader to practice measurement and directly apply the concept of area.

In this simple and social activity, children use size comparison skills to find objects in nature that are bigger, smaller, longer, and shorter.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.