1. Things that you can see in the sea.

2. Seashells are the empty shells of small sea creatures.
A jellyfish is a sea creature that has a clear soft body and can sting you.
Seashells are the empty shells of small sea creatures.

3. A starfish is a flat, star-shaped creature with five arms that lives in the sea
A crab is a sea creature with a flat round body covered by a shell, and five pairs of legs with large claws on the front pair. Crabs usually move sideways.

4. A turtle is a large reptile which has a thick shell covering its body and which lives in the sea most of the time.
A dolphin is a mammal which lives in the sea and looks like a large fish with a pointed mouth.

5. A shark is a very large fish
A shark is a very large fish. Some sharks have very sharp teeth and may attack people
An oyster is a large flat shellfish. Some oysters can be eaten and others produce valuable objects called pearls.