SITUATIONAL GAME-
Date: 2015-10-07; view: 605.
Imagine that you are the crust (the mantle, the core). What's happening in your body?
2. THE EARTH
Use the charts below and the supplementary texts from SELF-STUDY BOOKLET- (SUPPLEMENTARY READING COMPREHENSION MATERIAL -PG.90)
(BRAINSTORMING – is an activity which aims to help students with this important pre-writing stage of getting ideas together. In this task, it is a pair-work activity.)
STAGE 1:
Group work responding to a text discussion. During this stage, each group will discuss its own topic.
GROUP A
GROUP B
STAGE 2: Sharing ideas of response to the text. Divide the students into new groups, so that each group has a member with different information.
A B A B
stress
Now the members of each new group will share their ideas.
STAGE 3: Now each student must jot down all the information he/she remembers.
I. Jig-saw plan (1-2 minute) short one-point talk
II. Multi-point conversation (5 minutes)
| | | | | | | | Lower mantle
- 1793-652 miles
- solid
- composition similar to olivine
- fairly even composition
- density 470-358 lb/cubic ft
- temperature 5040-32400 F
- 68.3% Earth's mass
| | | | Oceanic crust
- outermost 3-6 miles below oceans
- solid
- average composition similar to that of basalt
- high silica and magnesium - SIMA
- distinctive from mantle in its composition-more silica
| | | |
| | | | | | | | Outer core
- 3762-1793 miles
- liquid
- moving about
- producing the Earth's magnetic field
- iron-sulfur mixture
- density 950-770 lb/cubic ft
- temperature 57600 F
- 29.3% Earth's mass
| | | | Continental crust
- outermost 16-56 miles representing the continental masses
- composition extremely complex
- averaging granite
- high in silica and aluminum - SIAL
- density 195 lb/cubic ft
- 2.5 denser water
- temperature 1148-320 F
- 0.7% Earth's mass
-
- 0.7% 0f the Earth's mass
| | | |
| | | | | | | | Inner core
- Center
- 3958-3762 miles
- solid
- iron-nickel alloy
- density 1017 lb/cubic ft
- temperature 81000 F
- 1.7% Earth's mass
| | | | Upper mantle
- 249 miles to 56 miles between continents
- 3 miles beneath oceans
- solid
- composition as the mantle
- rich in olivine
- density 233 lb/cubic ft
- temperature 2340-11480 F
| | | |
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