Living things:
* Fish: Streamlined bodies, fins for swimming, scales, gills to breathe underwater.
* Whales: Large, streamlined bodies, blowholes for breathing, fins and flukes for swimming.
* Sea turtles: Shell-covered bodies, flippers for swimming, can breathe air and live in the ocean.
* Water lilies: Large, round leaves floating on the water surface, colorful flowers emerging from the water.
* Coral reefs: Colorful, diverse ecosystems with hard, stony structures built by tiny animals.
* Algae: Green, slimy organisms that can grow in a variety of water environments.
Non-living things:
* Lakes: Bodies of fresh water surrounded by land.
* Oceans: Vast bodies of salt water covering the majority of the Earth.
* Rivers: Flowing bodies of water that often connect to lakes or oceans.
* Waterfalls: Cascading water flowing over a vertical drop.
* Beaches: Areas of sand or pebbles along a shoreline.
* Underwater caves: Dark, mysterious formations in the ocean.
To understand what "aquatic" looks like, you need to consider what specific things are being described. The beauty of the word "aquatic" is that it encompasses so much diversity, from the smallest plankton to the largest whale.