Fins help fish change direction.

Meaning: Fish use their fins to change the way they are swimming.

Choice of Words: Fins are special parts of a fish's body that help them move through water. Change means to become different. Direction means the way that something is pointing or moving.

Alternative Expressions

Fish use their fins to steer.

Meaning: This means that fish use their fins to control the way they swim and move in the water.

Choice of Words: **Fish** are animals that live in water. **Use** means to do something with something. **Fins** are like little paddles that fish have on their bodies. **Steer** means to control the direction of something.

Fins are like rudders on a boat.

Meaning: This means that fins are like rudders on a boat, which help the boat to turn and move in different directions.

Choice of Words: **Fins** are like little paddles that fish have on their bodies. **Rudders** are devices that help boats steer. **On** means that something is located on top of or attached to something else. **Boat** is a vehicle that floats on water.

Related Expressions