Atmosphere

Front

What is the atmosphere?

Back

A layer of gasses that surround the earth.

Front

What are the 3 purposes of Earth’s atmosphere?

Back

Support life on earth by protecting it from dangerous electromagnetic radiation; Create and control weather and climate; Provide gasses plants and animals need to breathe

Front

What are the 2 main gasses found in earth’s atmosphere? What percentage of the atmosphere do they make up?

Back

Nitrogen 78%, Oxygen 21%

Front

How are the following gasses important to life on Earth?

Back

Nitrogen: used by plants in growth and development; Oxygen: released into the atmosphere by plants as they photosynthesize; Water Vapor: cycle through the Water Cycle; Carbon Dioxide: removed from the atmosphere by green plants.

Front

What happens to atmospheric pressure as you gain altitude (go higher into the atmosphere)?

Back

Atmospheric pressure decreases the higher you go

Front

What happens to atmospheric density as you gain altitude (go higher into the atmosphere)?

Back

Atmospheric density decreases the higher up you go (molecules are closer together at lower levels and more spread out the higher you go).

Front

In what layer of the atmosphere is the ozone layer? How does the ozone layer protect earth? Where is the ozone layer “good” for earth? Where is the ozone layer “bad” for earth?

Back

The ozone layer is located at the bottom of the stratosphere. Ozone (O3) absorbs solar radiation. In the troposphere it is “bad” as it traps greenhouse gasses and heat. In the stratosphere it is good as it absorbs radiation and UV rays.

Front

Organize the layers of the atmosphere: Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere.

Back

1. Troposphere 2. Stratosphere 3. Mesosphere 4. Thermosphere 5. Exosphere

Front

Organize the following fact into the correct layer of the atmosphere: Most atmospheric air. Options: Troposphere, Stratosphere, Mesosphere, Thermosphere.

Back

Troposphere

Front

Organize the following fact into the correct layer of the atmosphere: Satellites orbit here.

Back

Exosphere