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Lesson 1Lesson 1

Active ReadingActive Reading

Engage Your Brain!

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Essential Question

Lesson Vocabulary

Preview the lesson.

Write the vocabulary term here.

Find the answer to the question in the lesson.

Find the caterpillar. How do its color and shape help it stay safe?

They help it .

How Are Living Things Adapted to Their Environments?

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Water lilies have long stems that let their leaves reach the water’s surface. There, the leaves get sunlight.

Plants live almost everywhere.

Some places they live are dry.

Other places are wet and shady.

Plants have ways to survive where

they live. These ways are called

adaptations. An adaptation is

something that helps a living

thing survive in its environment.

Survival SkillsSurvival SkillsSurvival Skills

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Look at this plant. Circle the kind of environment where it would best survive.

dry wet

Cacti live where it is dry. Their thick, waxy stems store water. Rain forest plants have

very large leaves. These leaves help the plants get sunlight in the shady forest.

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Camels live where it is dry and sandy. Long eyelashes help keep sand out of their eyes.

Penguins live on ice and in cold water. A thick layer of fat keeps them warm.

Animals also have adaptations to

help them survive in their environments.

They may live where there is little food.

They may live where it is very cold.

Their adaptations help them survive

where they live.

The main idea is the most important idea about something. Draw two lines under the main idea.

Animals At HomeAnimals At HomeAnimals At Home

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Giraffes have long tongues to pull leaves off trees.

Look at this animal. Circle the kind of environment where it would best survive.

dry, sandy

cold water

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The thorns on a prickly pear cactus make it hard for animals to eat its fruit.

Living things also have

adaptations to protect

themselves. Plant adaptations

help keep plants safe from

animals that might eat them.

Some of these adaptations

are thorns, bad taste, and

quick movement.

Daffodils taste bad. Animals do not like to eat them.

Plant ProtectionPlant ProtectionPlant ProtectionPlant ProtectionPlant ProtectionPlant ProtectionPlant ProtectionPlant ProtectionPlant ProtectionPlant ProtectionPlant ProtectionPlant Protection

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The leaves of the mimosa plant fold quickly when touched. This may knock off insects that want to eat the leaves.

Name two plant adaptations that protect plants from animals.

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Many animals must protect

themselves from other animals. They

have adaptations to help them stay

safe. These adaptations help protect

animals from other animals that want

to eat them.

A detail is a fact about a main idea. Draw one line under a detail. Draw an arrow to the main idea it tells about.

Skunks can spray a bad smell. The bad smell scares off other animals.

Animal ProtectionAnimal ProtectionAnimal Protection

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Write two characteristics that help the leaf insect survive.

The leaf insect looks like the leaf. This helps the insect hide.

Sea urchins have long, sharp spines. The spines protect them from fish and crabs.

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Sum It Up!Sum It Up!

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Write how each living thing protects itself.

Write It!

Match It!Match each living thing to the environment where it lives.

cold, snowy

dry, sandy wet, shady

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Word Play

Name

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Define the word adaptation. Then list adaptations that help plants and animals survive.

adaptation:

Plants Animals

large leaves fat

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Apply Concepts

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Family Members: Ask your child to describe some animal adaptations. Discuss how those adaptations help the animals survive.

Write two details that go with the main idea. Include details about two different adaptations.

Main Idea

Adaptations help living things survive in different environments.

Detail

Detail

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