Learn on PengiAmplify Science (California) Grade 3Chapter 3: Why were snails with yellow shells more likely to survive in their environment 10 years ago?

Sesson 1: Dynamic Environments

Key Idea.

Section 1

An Environment Changes Its Conditions

Key Idea

An environment is the home where plants and animals live. It includes all the living and nonliving things in an area. These homes do not always stay the same.

Over time, an environment can change. A forest might become drier, or a pond might get warmer. The kinds of food available for animals can also shift.

Section 2

Environments Change a Trait's Advantage

Key Idea

An adaptive trait is a feature that helps an organism survive in its home. For example, a color that helps an animal blend in with its surroundings is adaptive. This helps it hide from other animals.

But the environment is not always the same. It can change over time. The weather might get warmer, or the color of the ground might change from light to dark.

Lesson overview

Expand to review the lesson summary and core properties.

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Section 1

An Environment Changes Its Conditions

Key Idea

An environment is the home where plants and animals live. It includes all the living and nonliving things in an area. These homes do not always stay the same.

Over time, an environment can change. A forest might become drier, or a pond might get warmer. The kinds of food available for animals can also shift.

Section 2

Environments Change a Trait's Advantage

Key Idea

An adaptive trait is a feature that helps an organism survive in its home. For example, a color that helps an animal blend in with its surroundings is adaptive. This helps it hide from other animals.

But the environment is not always the same. It can change over time. The weather might get warmer, or the color of the ground might change from light to dark.