Water Habitats Basics

• Name types of water habitats.
• Identify animals and plants found in water habitats.
• Explain how fish and other animals live in water.
• Understand why keeping water habitats clean matters.

Level 1 - Getting started

Water habitats are homes found in and around ponds, rivers, and oceans.

Level 2 - Building the idea

A pond is a small body of still water, home to fish, frogs, and water plants. Rivers are flowing fresh water bodies that support fish and other animals.

Level 3 - Going deeper

The ocean is a huge body of salt water, home to whales, fish, and coral reefs. Fish breathe underwater using gills, and water lilies and lotus float and grow in ponds.

Level 4 - Indian context

The Ganga river is home to fish and the rare Gangetic river dolphin. Mangroves, like in the Sundarbans, are coastal habitats where land meets sea water. Pollution and overfishing can seriously harm water habitats, so keeping water clean protects fish and other living things.

Match habitat to living thing

Step 1 - List habitats: pond, river, ocean.
Step 2 - Recall a living thing found in each.
Step 3 - Match pond-frog, river-Gangetic dolphin, ocean-coral reef fish.
Step 4 - Write the three matches.
Answer: Pond-frog, river-Gangetic dolphin, ocean-coral reef fish.

Why fish need gills

Step 1 - Recall fish live underwater.
Step 2 - Recall gills take in oxygen from water.
Step 3 - Compare with how we breathe using lungs and air.
Step 4 - State why gills are essential for fish.
Answer: Gills let fish take in the oxygen dissolved in water, just as our lungs take in oxygen from air.

• Name one animal found in a pond.
• How do fish breathe underwater?
• Which Indian river is home to a rare dolphin?
• Why should we keep water habitats clean?
• Stretch: Draw a pond scene showing at least four living things — two animals and two plants.

Revision tip: Fresh water (ponds, rivers) and salt water (ocean) are both water habitats, each with its own living things.

Open the Practice tab for graded questions on Water Habitats Basics.