Aquifers are human-made structures that water flows through.

An aquarium can hold water without leaking.

All fire hydrants are bright yellow.

You can become dehydrated if you do not drink enough water.

An aqueduct is like a large underground lake.

Large ships and oil tankers can dock in a marina.

Hydroelectric energy is created by moving water.

Marine life also refers to fresh water fish in lakes and ponds.

Swimming is considered an aquatic sport.