Earthworms do not have legs. What is the best word to describe how they move?

Some animals can move quickly. Some animals move slowly. The tortoise moves slowly. Which one of these animals moves slowly?

This is a crab. It has special front legs. What are they called?

Snakes and lizards are both reptiles. But snakes have no legs. How do snakes move?

How many legs has this lizard?

Most animals have four legs, like this horse. Which one of these animals has more than four legs?

When birds fly, they flap their wings. What do the wings push against when they are flying?

When we move, our legs push against the ground. Fish have fins and a tail. Fish swim. What do the fins and tail push against when they are swimming?

Jake is an athlete. He is a sprinter. He can run very fast. What pushes him along?

Kangaroos have big back legs and small front legs. How do kangaroos move about?