Atmosphere-Weather

Earth Science Ch. 11

Temperature vs. Heat

Temperature-measures how rapidly molecules are moving

Heat-transfer of energy Flow is from hotter to colder

Temperature scales-fig.11-7

Converting degrees

F = (C x 1.8) + 32

C = 5/9 (F-32)

75-32=44x5/9= 24 C

Dew Point

Temp at which air must be cooled to reach saturation.

No dew or rain or snow til this temp occurs

Wind

HowStuffWorks Videos "Basics of Geology: Wind“

http://science.howstuffworks.com/search.php?terms=wind+energy&gallery=1&media=video

Humidity-water vapor in air

Relative humidity= actual amt in air potential amt of moisture it can hold

(More on this in geode disk)

Clouds

Part 2

How do clouds form?

Warm, moist air rises, then it expands and cools.

When it reaches its dew point, the water vapor condenses on condensation nuclei. Ex. dust, smoke particles, sea salt

Millions collect, and clouds form

4 ways air rises. . .

Weather _amp

Orographic Lifting

Convergence of air

Frontal wedging

In summary, 4 ways air rises

Types of Clouds (table 11-3)

Classified by altitude and shape

Cirro-high cirrus-hair Alto-middle cumulus-puffy Strato-low stratus-layer nimbus-rainy

General Info

Cirrus clouds made of ice crystals

Fog is lowest form of clouds

Coalescence-cloud droplets colliding They get big enough, and rain droplets form

Precipitation

Rain, snow, sleet, hail

rime-ice that forms when water droplets freeze

Assessment

1. Describe the 4 ways air can rise.

2. Describe how the water cycle works.

3. Know how to identify cloud types.

4. What are dew point and humidity?

References Most information was taken from Glencoe and McGraw-Hill’s Earth Science

textbook www.bbc.com www.howstuffworks.com http://www.vivoscuola.it/US/RSIGPP3202/umidita/lezioni/formation2.GIF http://www.atmos.umd.edu/~meto200/2_25_03_lecture_files/slide0017_ima

ge068.jpg http://apollo.lsc.vsc.edu/classes/met130/notes/chapter6/graphics/

lift_converge.jpg http://www.espere.net/Germany/schooljpggif/baloontext.jpg http://www.tagbanger.com/wp-content/uploads/2007/09/lenticular-clouds.jpg http://media.mgbg.com/wkrg/photos/weather/WaterCycleUSGS.jpg http://nbcsports.msnbc.com/id/38175509/