Apologia Physical Science Module 3 Part 1

Front 1

the mass of air surrounding a planet

Back 1

atmosphere

Front 2

Facts about the atmosphere

Back 2

it presses down on the earth and all its inhabitants, air has mass so it is like weight on our shoulders

Front 3

the pressure exerted by the atmosphere on all objects within it

Back 3

atmospheric pressure

Front 4

an instrument used to measure atmospheric pressure

Back 4

barometer

(most do not use water,typically they use mercury)

Front 5

should atmospheric pressure increase or decrease as altitude increases?

Back 5

In general atmospheric pressure decreased with increasing altitude. Think of atm. pressure as the weight of air pressing down on what it touches. As you increase alt., there is less air above you. As a result, there is less weight pressing down on you.

Front 6

The atmospheric pressure is 1.1 atm. Which of the following values for atmospheric pressure would you see in the weather report 29.9 inches, 32.9 inches, or 28.1 inches?

Back 6

32.9 in. Remember, an atmospheric pressure of 1.0 atm means that atmospheric pressure is at its average sea-level value, which is the same as 29.9 in. of mercury. Since the atm. pressure is 1.1 atm., we know that it must be higher that its average sea-level value. The only number given that is greater than 29.9 in of mercury is 32.9 inches of mercury.

Front 7

what are the two general layers the atmosphere are divided into

Back 7

the homosphere and heterosphere

Front 8

the lower layer of earth's atmosphere, which exists from ground level to roughly 80 km (50 miles) above sea level

Back 8

homosphere

Front 9

the prefix "homo" means

Back 9

same

Front 10

The atmospheric pressure is 1.1 atm. Which of the following values for atmospheric pressure would you see in the weather report 29.9 inches, 32.9 inches, or 28.1 inches?

Back 10

32.9 in. Remember, an atmospheric pressure of 1.0 atm means that atmospheric pressure is at its average sea-level value, which is the same as 29.9 in. of mercury. Since the atm. pressure is 1.1 atm., we know that it must be higher that its average sea-level value. The only number given that is greater than 29.9 in of mercury is 32.9 inches of mercury.

Front 11

what are the two general layers the atmosphere are divided into

Back 11

the homosphere and heterosphere

Front 12

the lower layer of earth's atmosphere, which exists from ground level to roughly 80 km (50 miles) above sea level

Back 12

homosphere

Front 13

the upper layer of earth's atmosphere, which exists higher than roughly 80 km (50 miles) above sea level

Back 13

heterosphere

Front 14

the prefix "homo" means

Back 14

same

Front 15

the air in the homosphere is made up of what gases

Back 15

78% nitrogen, 21% oxygen, and 1% many other gases. The amount of air in the homosphere does change, however but it is always in those %.It is just "thinner"

Front 16

the prefix "hetero" means

Back 16

different

Front 17

is milk heterogeneous or homogeneous

Back 17

homogeneous

Front 18

is Italian salad dressing heterogeneous or homogeneous?

Back 18

heterogeneous

Front 19

the three regions of the homosphere

Back 19

troposphere,stratosphere,mesosphere

Front 20

region of the atmosphere that extends from ground level to roughly 11 km (7 miles) above sea level.

Back 20

troposphere

Front 21

region of the atmosphere that spans altitudes of roughly 11 km to 48 km (30 miles)

Back 21

stratosphere

Front 22

region of the atmosphere that spans altitudes of roughly 48 km to 80 km (50 miles)

Back 22

mesosphere

Front 23

the boundary between the troposphere and the stratosphere

Back 23

tropopause

Front 24

the boundary between the stratosphere and the mesosphere

Back 24

mesopause

Front 25

differences between stratosphere and troposphere and mesosphere

Back 25

air is thinner in stratosphereand even thinner in mesosphere

Front 26

this is called the "weather layer" that cantains almost all the clouds, rain, snow, storms, etc

Back 26

the troposphere. the vast majority of earth's air supply exists in this region.

Front 27

in general for every km you increase in altitude, the temperature decreases by about 6.4 degrees Celsius. (gradient means gradual). this effect is called what?

Back 27

temperature gradient

Front 28

narrow bands of high-speed winds that circle the earth, blowing from west to east

Back 28

jet streams-- they can blow up to 250mph