Shells

Shells

Look at this shell. A snail is inside this shell. Sometimes, part of the snail is outside the shell.

The shell helps keep the snail safe. The shell moves with the snail.

Look at this crab. It has a shell. The crab lives inside the shell.

The shell helps keep the crab safe. The shell moves with the crab.

Look at this shell. A clam is inside this shell. The shell helps keep the clam safe.