Gills help fish breathe in water.

Meaning: Fish use their gills to take in oxygen from the water and release carbon dioxide.

Choice of Words: Breathe means to take in air and let it out again. Water is the liquid that makes up oceans, lakes, and rivers. Gills are special organs that fish have that help them breathe in water.

Alternative Expressions

Fish use gills to get oxygen from water.

Meaning: This means that fish have special organs called gills that allow them to take in oxygen from the water they swim in.

Choice of Words: Fish are creatures that live in water. Gills are special organs that fish have on their bodies that help them to breathe underwater. Oxygen is a gas that is necessary for life. Water is the liquid that fish live in. When you put these words together, "Fish use gills to get oxygen from water" explains how fish are able to breathe underwater.

Gills are like lungs for fish.

Meaning: This means that gills are to fish what lungs are to humans and other animals. They both help the creature to breathe.

Choice of Words: Gills are special organs that fish have on their bodies that help them to breathe underwater. Lungs are organs that humans and other animals have in their bodies that help them to breathe air. When you put these words together, "Gills are like lungs for fish" compares the function of gills in fish to the function of lungs in humans and other animals.

Related Expressions