PHYSICAL SCIENCE UNIT B
Homes For Living Things
Chapter One- Habitats for Plants and Animals
Vocabulary Words
Environment-living and nonliving things in a place
Habitat-place where an animal finds the food, water, and shelter it needs to live
Desert-environment that gets little rain
Rain forest-environment that gets much rain
Forest-environment that gets enough rain and warmth for many trees to grow
Tundra-cold and windy environment
Pond-small body of fresh water
Adaptation-anything about an animal that helps it live in its environment
Camouflage-way an animal looks that helps it hide
Migrate-travel to faraway places
Hibernate-go through the winter in a deep sleep
Estivate-stay in a deep sleep during the summer
Food chain-order in which animals eat plants and other animals
Chapter Review
1. Animals live in different environments around the world.
2. Different animals have different habitats to meet their own special needs.
3. Only a few plants and animals live in desert habitats because there is little water.
4. Desert animals get the water they need from desert plants that store water.
5. Rain falls almost every day and the weather is warm all year in the rain forest.
6. Many amphibians live in the rain forest because they need the wet environment.
7. Many forest trees lose their leaves in the fall because the weather turns cold.
8. Many forest birds fly to warmer places in the winter because they can't find food or shelter in the winter.
9. Trees don't grow in the tundra because the summer is too short.
10. Frogs, birds, insects, and otters are examples of animals that might live along the edge of a pond.
11. Turtles, fish, and plants are examples of living things that might live in a pond.
12. One animal adaptation is camouflage. This is the way an animal looks that helps it hide.
13. Ducks and many other birds migrate to warmer places to find food in winter. Some whales and fish migrate before they have their young.
14. An armadillo has a covering of hard plates. The plates protect the soft parts of its body.
15. Some adaptations are camouflage, body coverings, movements, migration, hibernation and estivation.
16. Animals can help plants by moving their seeds to new growing places.
UNIT B
Homes For Living Things
Chapter Two- Changes in Habitats
Vocabulary Words
Drought-long time without rain
Pollution-waste that harms land, water, or air
Litter-trash that is not put in a trash can
Endangered-an animal species being at risk of dying out
Reuse-use something more than once
Recycle-change something so it can be used to make something new
Chapter Review
1. Too little or too much rain can change a habitat. Plants could die and animals wouldn't have food.
2. During a drought many pond plants can die. Many pond animals move to other ponds.
3. When it rains for a long time, rainwater may flood the land.
4. Plants will die with too much or too little rain. Animals will leave and try to find more or less water. People are also affected by too much or too little rain.
5. Forest fires burn plants and cause animals to leave their environments. After a fire, soil is rich in nutrients and new plants grow.
6. Pollution harms the plants and animals that use the land, water, and air.
7. Polluted air gets into the lungs and bodies of animals and makes them sick.
8. Some types of pollution are air pollution, land pollution, and water pollution.
9. Reusing old things makes less trash. Old tires can be used again to build playgrounds.
10.People make less trash by recycling. Metal cans and plastic bottles may be melted down to make other things.
11. People can keep the environment clean by picking up litter and planting trees.
12. People can make less pollution by reusing and recycling things. They can ride bikes instead of going in a car.
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