Crocodiles

The crocodile is an animal with a hard outer skin. Sometimes animals have scaly skins. What kind of animal is this?
1. amphibian
2. mammal
3. reptile
4. bird
Which is correct? Read the statements below. There is more than one correct answer.
1. While crocodiles spend most of their time in water, they can come out and move around on the land.
2. The difference between an alligator and a crocodile is that you can not see the fourth tooth in the lower jaw of an alligator when the alligator's mouth is closed.
3. The only difference between a crocodile and an alligator is that alligators are not found in Africa and crocodiles are not found in America.
4. Crocodiles cannot breathe underwater: they breathe air, just like people.
Read the statements below. Choose the correct answers. There is more than one correct answer.
1. The Nile crocodile is the smallest of the 3 species of crocodile.
2. Alligators have U-shaped heads, while crocodiles' heads are V-shaped
3. Nile crocodiles can be found throughout most of Africa south of the Sahara, and on the island of Madagascar.
4. Saltwater crocodiles are normally bigger than the ones that live in fresh water.