For ages 12 and older. How many grains of sand would it take to fill the universe? This is a problem that the Greek mathematician Archimedes tried to solve in the third century B.C. In this activity, ...

A prism has a constant cross-section throughout its length. When the cross-section is a triangle, the prism is called a triangular prism. When the cross-section is a hexagon, the prism is called a ...

You’re moving, or maybe you’ve just got a lot of stuff, and you need to rent out a storage container—but you have no real sense for how much storage you need. Keep reading, because understanding the ...

To calculate the volume of a cube, the length, width and height dimensions are multiplied. Volume is measured in cubic units. These are unit cubes which may be mm³, cm³ and m³. There are multiple ways ...