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Atmosphere
Sci Chp5 Sec 1-Definition
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A blanket of gases that surrounds a planet
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Air
Sci Chp5 Sec 1-Definition
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The mixture of gases that make up Earth's atmosphere
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What gases are in the earth's atmosphere?
Sci Chp5 Sec 1-The atmosphere
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Nitrogen(78%), Oxygen(21%), and trace gases(argon(0.93%) and Carbon Dioxide (0.04%), and a tiny amount of trace gases
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How much nitrogen is in the earth's atmosphere?
Sci Chp5 Sec 1-The atmosphere
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78%
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How much oxygen is in the earth's atmosphere?
Sci Chp5 Sec 1-The atmosphere
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21%
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What are the steps of the Nitrogen Cycle?
Sci Chp5 Sec 1-The atmosphere
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1. nitrogen is released by volcanoes and decaying organisms
2.bacteria in soil use and release nitrogen containing molecules
3.plant proteins absorb the nitrogen containing molecules
4.animals and people eat the plant proteins
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Which planet does not have an atmosphere and why?
Sci Chp5 Sec 1-The story of Earth's atmosphere
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Mercury because it's too small and too close to the sun
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Which 2 planets atmospheres are mostly carbon dioxide?
Sci Chp5 Sec 1-The story of Earth's atmosphere
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Venus and Mars
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Which planet is just right for life?
Sci Chp5 Sec 1-The story of Earth's atmosphere
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Earth because it's mostly oxygen and nitrogen
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What is in Venus's atmosphere?
Sci Chp5 Sec 1-The story of Earth's atmosphere
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96% CO2, 3% N2, 0.1% water vapor
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What gases are in Mars atmosphere?
Sci Chp5 Sec 1-The story of Earth's atmosphere
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95% CO2, 3% N2, 1.6% Argon
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Make a pie graph that shows the composition of the atmosphere on Venus. Assume the percentage for the other gases equals 1%. You can use your book.
Sci Chp5 Sec 1-The story of Earth's atmosphere
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Draw graph
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What is in Mercury's atmosphere?
Sci Chp5 Sec 1-The story of Earth's atmosphere
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Nothing because Mercury doesn't have an atmosphere?
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What is coccolithophore?
Sci Chp5 Sec 1-Earth's unique atmosphere
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1.a single celled organism that uses CO2 dissolved in seawater for photosynthesis
2. each one of these organisms is only 0.002 to 0.02 mm across.
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What does coccolithophore do with carbon?
Sci Chp5 Sec 1-Earth's unique atmosphere
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They also use carbon to form intricate calcium carbonate shells. Eventhough these organisms are so small they, they pile up over the centuries and forming beautiful chalk structures
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