Seasons, Weather, Climate

Question 1

rotation def

Answer 1

spins on axis

Question 2

how long does rotation take?

Answer 2

23hrs 56 min 4 sec

Question 3

what % of Earth is experiencing daylight at any time

Answer 3

50%

Question 4

revolution def

Answer 4

orbiting, going around dun

Question 5

1 revolution takes _____ days

Answer 5

365.25

Question 6

top sun no shade

Answer 6

march 20
summer equinox
hemisphere gets same amount of light this day because tilt is not towards or away (equal night”

Question 7

bottom sun all shade

Answer 7

sept 23
fall equinox
tilt of earth is not towards or away “equal night”

Question 8

left of sun

Answer 8

june 21
summer solstice
NH angled towards sun= more direct light

Question 9

right of sun

Answer 9

dec 22
winter solstice
NH angled away from sun= more indirect light

Question 10

Sun pictured on the same day all year looks like?

Answer 10

like a figure 8
sun highest during summer solstice
lowest during winter solstice

Question 11

how do we know air is something?

Answer 11

can measure the mass of gases like air

Ex. weigh balloon before and after blown up= mass changed

Question 12

pressure describes?

Answer 12

• the force of a substance over an area
• provide a force in all directions
• gas pressing out on all sides container & molecules bounce off

Question 13

what makes up the atmosphere?

Answer 13

-layers of gas that surround earth

Question 14

why does the atmosphere stay around the earth?

Answer 14

• gravity holds gas molecules together

- molecules are escaping into space in upper part of atmosphere

Question 15

does the atmosphere end?

Answer 15

• it fades out other than ending.

Question 16

Troposphere

Answer 16

• contains 90% of the air that makes up atmosphere
• 90% of atmosphere is contained w/in first few miles above earth
• changing sphere
• weather occurs

Question 17

Stratosphere

Answer 17

• above troposphere
• layered sphere
• contains ozone layer

Question 18

ozone layer?

Answer 18

-absorbs ultraviolet radiation coming from sun
-people would get severe sunburns w/out it
-

Question 19

gases make atmosphere?

Answer 19

nitrogen- 78%

oxygen- 20.95

Question 20

what causes wind?

Answer 20

unequal heating of earth
temp diffs make pressure diffs
high pressure air masses move to low pressure air masses

Question 21

humidity

Answer 21

how much water vapor is in the air

indicator of precipitation fog or dew

Question 22

relative humidity means?

Answer 22

the % of water in the air has the maximum amount of water vapor in it.

Question 23

what 3 things require a cloud to form

Answer 23

1. water vapor in air
2. air that cools (air expands in upper part of atmosphere
3. dust particles to condense around

Question 24

what is a cloud not?

Answer 24

a gas

Question 25

greenhouse effect

Answer 25

- gases in atmosphere stop some of the heat from escaping into space. These gases are called greenhouse gases - the natural process between the sun, the atmosphere and the Earth is called the 'Greenhouse Effect', because it works the same way as a greenhouse. - windows of a greenhouse play the same role as the gases in the atmosphere, keeping some of the heat inside the greenhouse.

Question 26

negative green house

Answer 26

more heat from sun would be trapped in atmosphere increasing temp on earth

Question 27

pos of green house

Answer 27

keep planet at liveable temp

Question 28

diff between weather and climate

Answer 28

weather- short term changes in atmospher (mins to mons) Ex. temp, humidity, cloudiness, visibility, wind climate- long term changes of weather in area Ex. seasons