Animal Groups & Habitats — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. When an animal blends in with its surroundings, it is called camouflage.
Camouflage is when an animal's color or pattern matches the ground, leaves, or rocks around it so predators cannot easily spot it.
2. Some bears sleep through the whole winter in a deep sleep called hibernation.
Hibernation is a long, deep sleep that helps animals survive cold months when food is hard to find.
3. Birds that fly south for the winter are going on a migration.
Migration is a long trip animals take to find warmer weather or more food, and many birds fly south every year to do this.
4. A porcupine uses sharp quills on its back for protection.
Quills are like long, pointy needles. When an enemy comes close, a porcupine raises its quills to poke anyone who tries to touch it.
5. A chameleon changes its color to hide from predators.
A chameleon can change its skin color to match a green leaf or a brown branch, making it very hard for predators to see.
6. Thick fur helps polar bears stay warm in icy weather.
A polar bear's fur is very thick and acts like a cozy coat, trapping heat so the bear can live on freezing Arctic ice.
7. A skunk sprays a bad smell to scare away enemies.
When a skunk feels scared, it sprays a stinky liquid that smells so strong other animals quickly run away.
8. Ducks have webbed feet that help them paddle through water.
Webbed feet have skin connecting the toes, making them work like little paddles that push water backward so the duck can swim.
9. An arctic fox turns white in winter to match the snow.
When winter arrives, the fox's brown fur turns white — a kind of camouflage that helps it blend in with the snowy ground.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each animal to the adaptation it uses to survive.
Geese
→ Migration
Hard shell
Bear
→ Hibernation
Camouflage
Stick insect
→ Camouflage
Hibernation
Turtle
→ Hard shell
Migration
Geese fly south (migration), bears sleep through winter (hibernation), stick insects look like twigs (camouflage), and turtles hide inside their shells — each animal has its own survival trick.