L24The meteorologist says

a storm is coming…

Air Masses and Fronts

Created by sfalwell, permission for teachers to use if they include a link to http://comelearnmore.com/

Air is a FLUID

• A fluid can be a liquid or a gas

• Like water, air FLOWSand FORMS MASSES (AKA “blobs”)

http://4.bp.blogspot.com/-5I_y-CWxzH8/TsC1qGQL9AI/AAAAAAAAA8g/pAWCQh-PfLA/s1600/pouring_water2.jpg

http://www.google.com/imgres?start=126&hl=en&sa=X&qscrl=1&rlz=1T4SNNT_enUS351US356&biw=1093&bih=453&tbm=isch&prmd=imvns&tbnid=GoJeomeIyRjrsM:&imgrefurl=http://www.teachingsafari.com/home/saf/page_170&docid=HZ_dFhNKoLVydM&imgurl=http://www.teachingsafari.com/shop/images/cec_students_swimming_lake_michigan.jpg&w=325&h=246&ei=gFF7UKOTApOy8QSe9YHABg&zoom=1&iact=hc&vpx=501&vpy=2&dur=1851&hovh=195&hovw=258&tx=137&ty=87&sig=114067199968675807288&page=11&tbnh=152&tbnw=199&ndsp=13&ved=1t:429,r:36,s:100,i:112

VOCABULARY1. Air Mass =

2. Tropical =

3. Polar =

4. Continental =

5. Maritime =

1. a “blob” of air with similar properties

2. Near equator (warmer)

3. Near poles (colder)

4. Over land (dry)

5. Over water (humid)

http://www.freeusandworldmaps.com/images/World_Regions_Print/NAmericaPrintNoText.jpg

Maritime Polar Maritime

Polar

Maritime Tropical

Maritime Tropical

Continental Polar

Continental Tropical

R 24 (Top Half of Page)

FRONT =

Review: How does

different temperature air move?

What makes clouds and precipitation?

• Warm front• Cold front• Stationary front• Occluded front

R24 Quest. go on bottom of page

Key words in your answers: Density

Condensation

where 2 or more air masses meet

4 Types of Fronts

http://www.google.com/imgres?hl=en&sa=X&qscrl=1&rlz=1T4SNNT_enUS351US356&biw=1093&bih=453&tbm=isch&prmd=imvns&tbnid=FRTa3IxpO6B5AM:&imgrefurl=http://cimss.ssec.wisc.edu/sage/meteorology/lesson4/intro.html&docid=9WGv--nP52NVNM&imgurl=http://cimss.ssec.wisc.edu/sage/meteorology/lesson4/images/us_wx_map3.jpg&w=640&h=480&ei=8Fx7ULvCC42o8ATa7IHwAQ&zoom=1&iact=hc&vpx=67&vpy=124&dur=2404&hovh=194&hovw=259&tx=139&ty=93&sig=114067199968675807288&page=2&tbnh=100&tbnw=116&start=9&ndsp=15&ved=1t:429,r:9,s:0,i:99

Set Up Interactive Notebook PagesNotes on 4 types of frontsL25

Warm FrontR25

Stationary Front

Cold Front Occluded Front

Picture Words

Picture

Picture

PictureWords

Words

Words

http://www.kidsgeo.com/geography-for-kids/0127-warm-fronts.php

Warm Front

http://www.kidsgeo.com/geography-for-kids/0128-cold-fronts.php

Cold Front

http://www.kidsgeo.com/geography-for-kids/0129-stationary-fronts.php

Stationary Front

http://www.google.com/imgres?q=occluded+front&hl=en&sa=X&qscrl=1&rlz=1T4SNNT_enUS351US356&biw=1008&bih=354&tbm=isch&prmd=imvns&tbnid=GNNnomRvFAgOFM:&imgrefurl=http://www.geography.hunter.cuny.edu/~tbw/wc.notes/9.weather.patterns/occlusion_stage_2.htm&docid=e2cPRUa70Hzj5M&imgurl=http://www.geography.hunter.cuny.edu/~tbw/wc.notes/9.weather.patterns/occlusion.stage.2.jpg&w=796&h=301&ei=f6N8ULi0Eoiu8ATDkYD4Cg&zoom=1&iact=hc&vpx=247&vpy=29&dur=1471&hovh=138&hovw=365&tx=274&ty=101&sig=114067199968675807288&page=8&tbnh=99&tbnw=262&start=60&ndsp=8&ved=1t:429,r:45,s:20,i:336

Occluded Front

Set Up Interactive Notebook PagesNotes on 4 types of fronts

At the end of this lesson, you want to be able to explain:

1. How are air masses formed and named?

2. What are the 4 kinds of fronts?a) How are they named?b) What kind of weather do they

bring? Why?