Reach Higher 3 key vocabulary page 111

Which word best describes a river that has no water due to a long period without rain?

• Flooded

• Drought

• Overflowing

• Frozen

Answer explanation

A river with no water due to a long period without rain is best described as experiencing a 'drought.' This term specifically refers to prolonged dry conditions, making it the correct choice over the other options.

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CCSS.L.2.5

What is the main purpose of a food chain in an ecosystem?

• To show how plants grow

• To show how energy moves from one living thing to another

• To show how rivers flow

• To show how animals sleep

Answer explanation

The main purpose of a food chain is to illustrate how energy moves from one living thing to another, showing the flow of energy through different organisms in an ecosystem.

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CCSS.L.2.5A

Which word can be used to describe both a mountain and a book?

• Level

• Page

• Cover

• Peak

Answer explanation

The word 'Peak' describes the highest point of a mountain and can also refer to the top or cover of a book, making it the correct choice that fits both contexts.

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CCSS.L.2.4

If you are describing a food that is spicy, which of these would you most likely be talking about?

• Ice cream

• Chili pepper

• Bread

• Watermelon

Answer explanation

Chili peppers are known for their spiciness due to the presence of capsaicin, making them the most likely food to be described as spicy. In contrast, ice cream, bread, and watermelon are typically not spicy.

Tags

CCSS.L.2.5A

What does the word "ecosystem" refer to?

• A type of weather

• A community of living things interacting with their environment

• A kind of food

• A type of river

Answer explanation

The term "ecosystem" specifically refers to a community of living organisms interacting with their environment, including both biotic and abiotic components. This distinguishes it from weather, food, or river types.

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CCSS.L.2.5

In the sentence "The river was so dry, it looked like a desert," what does the word "dry" mean?

• Wet

• Full of water

• Without water

• Flowing

Answer explanation

In the sentence, 'dry' means 'without water,' as it describes the river's lack of water, making it resemble a desert. The other options, like 'wet' or 'full of water,' contradict the context.

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CCSS.L.2.4A

Which word best fits the sentence: "The _______ was home to many fish and plants."

• Mountain

• River

• Desert

• Sky

Answer explanation

The word 'River' best fits the sentence because rivers are aquatic environments that support a variety of fish and plant life, unlike mountains, deserts, or the sky, which do not typically host such ecosystems.

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CCSS.L.2.4A

What does the word "level" mean in the sentence "The water level in the river was very low"?

• A tool for measuring

• A flat surface

• The height of the water

• A type of fish

Answer explanation

In the sentence, 'level' refers to the height of the water in the river. It indicates how much water is present, making 'The height of the water' the correct interpretation.

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CCSS.L.2.4A

Which term describes a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system?

• Biosphere

• Ecosystem

• Habitat

• Biome

Answer explanation

An ecosystem is defined as a community of living organisms interacting with their nonliving environment, functioning as a system. This distinguishes it from terms like biosphere, habitat, and biome, which have broader or different meanings.

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DOK Level 1: Recall

Which of the following is an example of an aquatic ecosystem?

• Desert

• Coral reef

• Grassland

• Tundra

Answer explanation

A coral reef is an aquatic ecosystem characterized by its diverse marine life and coral structures. In contrast, deserts, grasslands, and tundras are terrestrial ecosystems, making coral reefs the correct choice.