module 11- earth athmosphere

Question 1

athmosphere

Answer 1

The layer of gases that surround Earth and other planets

made of : nitrogen (78%), oxygen (21%), and argon (0.9%).

Question 2

density

Answer 2

mass divided by volume

-it decreases as you go higher up in atmosphere

Question 3

layers of atmosphere

Answer 3

exosphere
thermosphere
mesosphere
stratosphere
troposphere

Question 4

1.troposphere

Answer 4

It is the densest layer and contains about 75% to 80% of the mass of the atmosphere. Air is in a constant motion in the troposphere. It is in this layer that weather occurs.

Question 5

2.stratosphere

Answer 5

The stratosphere contains the ozone layer that protects us from harmful sun radiation. This layer is very stable, which is why airplanes fly at this altitude.

Question 6

3.mesosphere

Answer 6

This is the part of the atmosphere where meteors burn up, leaving visible fiery streaks in the sky.
coldest layer

Question 7

4.thermosphere

Answer 7

This is the part where the polar lights, or auroras, happen. Also, the International Space Station orbits Earth in this layer.

Question 8

5.exosphere

Answer 8

where the atmosphere thins out and merges with outer space.

Question 9

humidity and air`

Answer 9

Air pressure decreases with temperature and humidity, so a warm, moist air mass will have a lower pressure than a cold, dry air mass.
(easier to breath in warm moist weather than in the cold mountains)

Question 10

convection cells

Answer 10

is a circulation pattern that forms when the riding of warm air is balanced by the sining of cool air.

Question 11

coriolis

Answer 11

the flow of air from the poles to the equator are broken into 3 smaller convection cells

Question 12

water cycle / Hydrologic cycle

Answer 12

1. evaporation/transpiration
2. precipitation
3. infiltration/runoff

Question 13

transpiration

Answer 13

is a type of evaporation in which plants take up groundwater and release it into the air as water vapor.

Question 14

precipitation

Answer 14

rain, snow, or hail

Question 15

infiltration

Answer 15

rain etc, soaks into the ground

Question 16

runoff

Answer 16

rain etc, that is not soaked up by the ground.
- it goes into lakes, oceans, streams
and it evaporates from there.

Question 17

air mass

Answer 17

a large volume of warm or cool air that has approximately uniform temperature, humidity and pressure over hundreds or thousands of miles horizontally

Question 18

greenhouse effect

Answer 18

sunlight strikes the earth and its absorbed by ground clouds and re-emitted as infrared radiation. CO2 and other gases in the atmosphere absorb the infrared and keep the earth warm

Question 19

pressure systems

Answer 19

high pressure systems-good weather

low pressure systems- cause bad weather (cyclonic)

Question 20

air pressure

Answer 20

the higher you go up, the less pressure there is.
top of mountains =low pressure.

low valley=high pressure