If you're like most kids, you've probably broken a bone. Or maybe you know someone else who has. That means you've seen a cast. Do you know how a cast works? What it's made of? Whether it's OK to draw on one? Keep reading to find out more.
Think of a cast as a big bandage that has two layers. Inside there is a soft cotton layer. It rests next to the skin. This makes the cast more comfortable. It also protects the skin. Outside there is a hard outer layer. This layer prevents the broken bone from moving. Sometimes you can choose how your cast looks. You can pick cool colors or patterns.
Casts come in two types. The first type is made of plaster of @Paris. You may have used this material for arts and crafts.
