Topic 4, Lesson 2 - Climate Change

Micah is reading a book about climate change. He made a table to record what he learns. He organized his table using two columns, X and Y. Micah plans to replace X and Y in his table with words. Which are the best words for him to use?

• X: Volcano eruptions Y: Burning fuels

• X: Burning fuels Y: Volcano eruptions

• X: Affects weather Y: Does not affect weather

• X: Does not affect weather Y: Affects weather

By studying tree rings, the scientist can study the (climate / greenhouse gases / soil temperature / elevation) of the area surrounding the tree's location.

• climate

• greenhouse gases

• soil temperature

• elevation

Which questions can the scientist help to answer by studying the tree rings? Choose the three (3) that apply.

• Did the area of the tree experience warm temperatures and a lot of precipitation?

• How many trees populate the area where this tree is located?

• Did the climate of the area where the tree is located change?

• What is the age of the tree?

The percentage of carbon dioxide in the atmosphere will probably continue to (stay the same / increase / decrease) as people keep burning more fuels.

• stay the same

• increase

• decrease

The burning of more fossil fuels will make Earth's climate (warmer / wetter / cooler).

• warmer

• cooler

• wetter

Katya has a map of a glacier. Katya uses the map to learn how the length of the glacier has changed over time. She records what she has learned in the table. The glacier is (melting / freezing) over time.

• melting

• freezing

Katya has a map of a glacier. Katya uses the map to learn how the length of the glacier has changed over time. She records what she has learned in the table. By continuing its pattern, this most likely means that the climate in this part of the world is getting (cooler / wetter / warmer).

• cooler

• wetter

• warmer

Mount Pinatubo is a volcano. It erupted in 1991 and sent a huge cloud of ash over the area. How did the cloud of ash most likely affect the climate in this area?

• The climate got drier because ash takes moisture from the air.

• The climate got cooler because ash caused the greenhouse effect.

• The climate got cooler because ash blocked sunlight.

• The climate got drier because ash stopped precipitation from falling to Earth.

Answer the question in a full complete sentence.

How is the climate of Earth changing?

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Answer the following question in a complete sentence.

How do human activities change climate?

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