Containers

A pan is a metal container that usually has a flat bottom and reasonably straight sides. Pans may or may not have handles. Shallow pans are called frying pans, and deeper pans are called saucepans.

A pot is a container that is usually made from earthenware or metal. Pots can be used for a great variety of things, and come in different shapes. Most pots are round but some are square, some have handles and some don't, some are narrow at the base and others are the same width the whole way up. Most pots have no lid but some do.
Pots can be used to store things in, to cook food in, or to grow plants in.
Pot is also a slang term for marijuana.

A pouch is a type of small bag that opens at the top. Pouches are often a shape that has a rounded bottom. Some animals, called marsupials have pouches.

A quiver is something you store arrows in. You usually carry a quiver by wearing it on your back.

A sack is a type of large bag that is used to store things in. Sacks are most commonly used to store foods like rice and other grains, flour, and potatoes.

A satchel is a small carry-bag, usually with a single strap.

The picture is of the internal skeleton of the sea urchin. They are like a hollow ball and you often find them washed up on the beach.

A shipping container is a very large box that is used for transporting goods very long distances. Containers are designed to stack onto each other, and are the perfect size to fit on trucks and trains. You can fit hundreds of containers on a cargo ship.

A tackle box is a container used to store fishing equipment. Tackle boxes usually contain many levels that are stacked together when it is closed, and spread out when it is open. Tackle boxes can be used to keep lots of small fishing items like hooks, fishing line, sinkers, lures and other tools.

A tote bag is a light carry-bag that you use for carrying all sorts of things in, like your groceries.