A bag is a container with handles that you carry around with you. You can put all sorts of things in a bag, depending on how big it is.

School children carry their books in a bag on their back. Women carry lipstick in small bags that they carry in their hands or over one shoulder - usually called handbags. The biggest bag is a suitcase that you pack a lot of your clothes in when you go on holidays.

A basket is a container that is woven, in a process called wickerwork. Baskets can be made from thin willow branches, bamboo, plastic or wire.

Boxes are something you store things in. When you buy an appliance from a shop it often comes in a box. Boxes can be made of simple cardboard, or can be very fancy wooden boxes.

A box that is big enough makes a great cubbyhouse. The box in the picture is big enough to fit a girl inside.

A cage is something you keep an animal or bird in so it can't get away. Pet birds are often kept in cages, like in the picture.

A case is something that goes around something else, for storage and protection. Expensive things that need to be kept safe are usually kept in cases. The picture is of a violin and its case, but it is common to see guitar cases and glasses cases too.

Case might also be a word for a situation or the state of things, as in "take some money in case you need it".