C9 Chemistry of the Atmosphere

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The Earth's atmosphere has changed during the last 4.6 billion years. What is the approximate percentage of nitrogen and of oxygen in the Earth's atmosphere today?

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Because the Earth was formed _____________  of years ago, it is difficult for scientists to know what it was like then. This is why we often use the phrase “scientists believe”; scientists have _____________  based on _____________ , but at this point in time they cannot be sure.

Describe and explain how the surface and atmosphere of the Early Earth have changed and evolved to form the present day Earth

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Draw your matching here

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The equation below shows a common reaction.

carbon dioxide + water --> glucose + oxygen

What is the name of the reaction?

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Explain, in as much detail as you can, why the results shown in the graph could cause widespread concern

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Click here to view a video on carbon footprint

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When coal is burned as a fuel the emissions released include carbon dioxide, water and sulphur dioxide.

Match the product with the type of pollution is causes by drawing one line from each product

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Draggable item		Corresponding Item

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Sulfur + oxygen -->

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Hydrogen + oxygen -->

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Butane + oxygen -->

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Earth and Space Science Website

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Watch the video on How Sunscreen Hurts Coral

Watch the video on Is it OK to be Smart?

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Watch the video on How Trees clean the air (above) and the video on Are Trees Renewable Resources?

Comprehension Questions

1) Why are trees categorized as a renewable fuel source?
2) Describe the financial incentives for burning wood for energy.
3) Describe how burning wood for energy harms the environment.
3) Dscribe how burning wood for energy harms the environment.
4) Why is Oregon particularly motivated to use wood for biofuel?
5) Describe the event that Margie Hoffman related to her support of using wood as a biofuel.
6) How has fire suppression made wildfires more dangerous?
7) Identify at least two ways that fire helps living organisms.

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Watch the video on Are Trees Renewable Resources?

Critical Thinking Questions

8) How could you explain why using wood should not be eligible to receive financial incentives as a renewable resource?
9) Compare and contrast wood and coal as fuel sources. Are there factors beyond carbon dioxide emissions that might make wood a better fuel source than coal?
10) Why might Oregon consider using wood for biofuel one of the best options for maintaining a healthy forest? 11) How might it benefit the state more than alternative methods for removing wood waste?
12) Brainstorm alternative wood uses rather than biofuel that could still help Oregon prevent wildfires.
13) If sequoias need fire to regenerate, how has a century of fire suppression most likely affected sequoia forests?
14) How might the increasing number of fires due to climate change affect the natural fire linked to the sequoia regeneration cycle?

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Carbon monoxide is also produce in car engines.

Name the process that produces carbon monoxide

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When coal is burned as a fuel the emissions released include carbon dioxide, water and sulphur dioxide.

Match the product with the type of pollution is causes by drawing one line from each product

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Draggable item		Corresponding Item
Soot / Particulates		Acid rain
Carbon monoxide		No harm
Water		Global warming
Sulfur dioxide		Toxic
Carbon Dioxide		Global Dimming

C9 Chemistry of the Atmosphere

The Earth's atmosphere has changed during the last 4.6 billion years. What is the approximate percentage of nitrogen and of oxygen in the Earth's atmosphere today?

Describe and explain how the surface and atmosphere of the Early Earth have changed and evolved to form the present day Earth

Draw your matching here

The equation below shows a common reaction.carbon dioxide + water --> glucose + oxygenWhat is the name of the reaction?

Explain, in as much detail as you can, why the results shown in the graph could cause widespread concern

When coal is burned as a fuel the emissions released include carbon dioxide, water and sulphur dioxide. Match the product with the type of pollution is causes by drawing one line from each product

Sulfur + oxygen -->

Hydrogen + oxygen -->

Butane + oxygen -->

Carbon monoxide is also produce in car engines. Name the process that produces carbon monoxide

When coal is burned as a fuel the emissions released include carbon dioxide, water and sulphur dioxide. Match the product with the type of pollution is causes by drawing one line from each product

The Earth's atmosphere has changed during the last 4.6 billion years. What is the approximate percentage of nitrogen and of oxygen in the Earth's atmosphere today?

The approximate percentage of carbon dioxide in the Earth's early atmosphere was 95%. Which are two reasons why the percentage of carbon dioxide has decreased since the Earth's early atmosphere?

What is the most abundant gas in the atmosphere?

The atmosphere is composed of mainly

What is the most abundant gas in the atmosphere?

The atmosphere is composed of mainly

In the Early Atmosphere, what caused the increase in carbon dioxide?

Describe and explain how the surface and atmosphere of the Early Earth have changed and evolved to form the present day Earth

Draw your matching here

Which gas is released into the atmosphere by plants as they photosynthesise?

The equation below shows a common reaction.carbon dioxide + water --> glucose + oxygenWhat is the name of the reaction?

Which of these is a greenhouse gas?

Which of these gases below is not a greenhouse gas?

Global warming – an increase in the temperature of the Earth – will result in climate change. What is one possible human cause of global warming and climate change?

The equation below shows a common reaction.

carbon dioxide + water --> glucose + oxygen

What is the name of the reaction?

When coal is burned as a fuel the emissions released include carbon dioxide, water and sulphur dioxide.

Match the product with the type of pollution is causes by drawing one line from each product

Carbon monoxide is also produce in car engines.

Name the process that produces carbon monoxide

When coal is burned as a fuel the emissions released include carbon dioxide, water and sulphur dioxide.

Match the product with the type of pollution is causes by drawing one line from each product

The equation below shows a common reaction.

carbon dioxide + water --> glucose + oxygen

What is the name of the reaction?

Global warming – an increase in the temperature of the Earth – will result in climate change.

What is one possible human cause of global warming and climate change?