大象传媒

An introduction to the properties of cylinders and cones. Cylinders can be found everywhere - for example, a tin of tomatoes is a cylinder. A cylinder has two flat faces and one curved face and it can come in many different sizes. A rolling pin, spaghetti and a swiss roll are all cylinders. These cylinders have no space inside so they are solid cylinders. If a cylinder is empty inside like a tin of tomatoes it is called a hollow cylinder. We can find examples of hollow and solid cylinders all around us, such as wheels and drum kits. A hollow cylinder can be changed into a hollow cone shape. A hollow cone has one curved face and a sharp point. Cones are good for ice creams, party hats and juggling sticks.