Climate Change and Greenhouse Effect

Climate is defined as weather patterns that change on a scale of at least a few…

• Weeks

• Months

• Years

• Decades

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How are changes in climate different from changes in weather?

• Climate changes only occur in northern latitudes.

• Weather changes refer to periods longer than 30 years.

• Climate changes occur much more slowly than weather changes.

• Weather changes are greater near the equator than in northern latitudes.

The Earth's temperatures are stable because we are surrounded by ________ that allows the right amount of sunlight to enter and warm the Earth.

• a layer of clouds

• an atmosphere

• gravity

• water

In what two ways can we know that there might be an El Niño?

• The sea surface warms in the eastern equatorial Pacific, the trade winds strengthen

• Landslide in the backyard, Elvis returns, hell freezes over

• The sea surface warms in the eastern equatorial Pacific, the trade winds weaken

• The sea surface cools in the eastern equatorial Pacific, the trade winds weaken

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NGSS.MS-ESS2-6

Based on the graph, what can you predict will happen in the future?

• As CO2 levels increase, temperatures will continue to rise

• CO2 levels have nothing to do with temperature

• Temperatures will decrease as CO2 levels increase

• CO2 levels will decrease and temperatures will increase.

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NGSS.MS-ESS3-5

As temperatures rise, animals will react to the change:

• Having more offspring

• Changing their normal patterns north or south to remain where temperatures are the same

• Eating more food

• Animals will not react to the temperature change

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What is the main cause of the greenhouse effect?

• The gases in the atmosphere absorb the Sun's heat.

• The gases in the atmosphere absorb the Earth's surface heat.

• The gases in the ozone layer absorb the Sun's heat.

• The gases in the ozone layer absorb the Earth's surface heat.

If human civilization had never developed on Earth, would there be a greenhouse effect?

• Yes, the greenhouse effect is caused by naturally occurring gases.

• Yes, the greenhouse effect is caused by plants emitting gases.

• No, the greenhouse effect is caused by humans burning fossil fuels.

• No, the greenhouse effect is caused by humans depleting the ozone.

• No, there is no conclusive evidence that a greenhouse effect exists.

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What are greenhouse gases?

• Gases in the atmosphere that are produced as plants grow.

• Gases on the surface of the earth that absorb energy.

• Gases in the atmosphere that make rain turn acidic.

• Gases in the atmosphere that absorb energy (heat)

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NGSS.MS-ESS3-5

Currently, the concentration of carbon dioxide in Earth's atmosphere is approximately 400 parts per million. During the Cretaceous period, about 110 million years ago, the concentration of carbon dioxide in Earth's atmosphere was approximately 2,000 parts per million.

Based on your knowledge of the greenhouse effect, how do you think the average temperature on Earth 110 million years ago compared to the temperature in modern times?

• Temperatures were warmer 110 million years ago than in modern times.

• Temperatures were cooler 110 million years ago than in modern times.

• Temperatures 110 million years ago were approximately the same as in modern times.

• More information is needed to answer this question.

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