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Flashcards in weather Deck (38)
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1

weather

the conditions outside considered from day to day

2

climate

weather conditions of an area averaged over many years

3

atmosphere

the blanket of air and moisture that surrounds earth

4

latitude

side to side

5

longitude

up and down

6

condensation

water that collects as droplets on a cold surface when humid air is in contact with it

7

sublimation

a chemical process where a solid turns into gas without going through the liquid stage
Eg.) ice cubes shrinking in the freezer

8

deposition

gas turns to solid

9

evaporation

a liquid turns to gas

10

precipitation

process of precipitating a substance from a solution

11

transpiration

process where plants absorb water, then give off water vapour through pores in their leaves

12

hydrosphere

all the water join the earths surface
Eg.) Lakes, Seas

13

5 layers of the atmosphere

- troposphere
- stratosphere
- mesosphere
- thermosphere
- exosphere

14

troposphere

- high density layer
- goes to an altitude of 16km at equator and 8km at the poles
- contains most of the atmospheres moisture

15

stratosphere

- above the troposphere
- ranges from 12km-50km
- air is cold, dry, clean

16

mesosphere

- middle layer
- extends from 50km- 80km
- temperature and density of gases is extremely low

17

thermosphere

- low density of molecules but higher energy producing higher temperatures
- electromagnetic waves from sun are absorbed here, which increases temp
- charged ions product light called auroras

18

exosphere

- thin outermost layer
- can be called space because there are so few particles

19

distribution of fresh water=

2.5

20

distribution of glaciers=

2.2%

21

distribution of underground water=

0.31%

22

distribution of surface and atmospheric=

0.4%

23

Heat sink

any object that absorbs energy and becomes warmer

24

latent heat

when water changes state, a certain amount of heat is taken in or taken off

25

heat capacity

measure of how much heat must be added to raise the temperature of a substance

26

albedo

the degree to which a surface reflects light

27

Conduction

transfer of energy by touching one object to another
Eg.) egg in frying pan

28

Convection

transfer of heat through fluid
Eg.) water heated in a pot

29

Radiation

transfer of energy without a medium by electromagnetic waves
Eg.) sunlight traveling through space

30

Jet stream

a current of fast moving air found between 10-15km above the earths surface