UNIT 2: GEOLOGIC
EVENTS
7th Grade IB Science
U2: Geologic Events
U2: AHA Connections

Bell Work
 Set
up AHA Connections pages on pgs. 22-23 of your
notebook.
 The title is: U2: AHA Connections. NO DATE
 Record the following question in the light bulb:
 How
 Add
do people cope with things beyond their control?
these 3 questions in to the same area of pgs. 22-
23:
 What
evidence supports continental drift?
 Why did scientists question the continental drift hypothesis?
 Which coastlines might once have been joined together?
U2:Trigger Activity Sept. 6, 2011





Objective: You will create 2 puzzles (one with small
pieces and one with large pieces).
Put the title and date on pgs. 24-25 in your
notebook.
Using 2 pieces of notebook paper, draw a simple
picture.
Cut one picture into large puzzle pieces.
Cut the other picture into small puzzle pieces.
U2:Trigger Activity Sept. 6, 2011



Write a hypothesis in your notebook on pg. 25
about which puzzle will go back together with less
trouble. “If I put together the puzzle with…then I
will be able to get all the pieces to fit.”
Put pieces together.
Write a statement after your hypothesis to explain
if your hypothesis was supported or not and why.
U2:Trigger Activity Sept. 6, 2011

Homework:
 Look
at a map of the globe and answer the following
question on pg. 24 of your notebook: Which coastlines
might once have been joined together?
 Answer in a STATEMENT not a paragraph.
 What evidence from today’s activity helped you
answer this question?
U2: The Continental Drift Hypothesis
9-7-11, 9-8-11

Climate Clues
 Read
pg. 188 and take BRIEF notes on pg. 2 in your
foldable.
U2: The Continental Drift Hypothesis,
9-7-11, 9-8-11

Fossil Clues
 Read
pg. 189 and take BRIEF notes on pg. 4 of your
foldable.
U2: The Continental Drift Hypothesis,
9-8-11

Rock Clues
 Read
pg. 190 and take BRIEF notes on pg. 3 of your
foldable.
U2: The Continental Drift Hypothesis,
9-9-11

Read pg. 191 and take BRIEF notes over the
section: WHAT WAS MISSING? Take notes on pg. 5
of your foldable.

Amoeba People
http://www.youtube.com/watch?v=T1-cES1Ekto
Pangaea’s Moving Farther Apart Again
http://www.youtube.com/watch?v=gyT8Xs6Abk&feature=related
BBC
http://www.youtube.com/watch?v=ryrXAGY1dmE&featur
e=related
How old is the Atlantic Ocean, 9-14-11




Copy the mini lab from pg. 197 onto pg. 31 in your
notebook.
Choose a partner.
Work through the lab together.
Analyze and Conclude about the age of the Atlantic
http://www.mysciencebox.org/node/579
http://geography.about.com/od/physicalgeography/a/
magnetic.htm
Rock Cycle, 9-29-11

http://www.youtube.com/watch?v=ihfKNRdlE2E&fe
ature=related
Rock Cycle, 9-29-11

http://www.online-stopwatch.com/
Types of Mountains 10-4 (NB44-45)

Folded Mountains
Examples: Rocky Mountains, The Alps
 Created by compression at convergent boundaries
http://www.youtube.com/watch?v=jVyBsUgD7Gk&feature=results_
main&playnext=1&list=PL957C73D6B68723E3


Fault-Block Mountains
Example: Basin and Range Province in western and southwestern
U.S.
 Created by tension at divergent boundaries – crust pulls apart to
form a fault and large blocks of crust slide up or down
http://www.youtube.com/watch?v=x_WYpKNfsnY&feature=relate
d

Types of Mountains 10-4 (NB44-45)

Uplifted Mountains
 Example:

Sierra Nevada Mountains
Volcanic Mountains
 Examples:
Mt. St. Helens, Hawaiian Islands
 Formed by sitting over a hotspot or by subduction of an
oceanic plate
http://www.youtube.com/watch?v=Bf4iJvrAv-M

Transform Faults
 Occurs
when plates at a divergent boundary slide
horizontally to each other, perpendicular to the
ridge/rift
 http://www.bing.com/videos/search?q=transform+faul
t&view=detail&mid=9052C44400F3A614F8499052
C44400F3A614F849&first=0&FORM=LKVR

Fault Zones
 Occur
when plates slide past each other, shearing and
causing smaller faults to form perpendicular to the main
fault



As you read through chapter 9, write questions on
sticky notes (front table and back counter).
Imagine yourself teaching either earthquakes or
volcanoes. What do you think is important for
students to know? (Use this to guide your question
writing).
Do you have any project ideas for this chapter that
could help answer the BIG IDEA question (see your
AHA Connections pages for Geologic Events)?
Types of Faults 10-17-11



Strike-Slip Fault
Forms at a Transform boundary (like the boundary
between the Pacific Plate and the North American
Plate, which has formed the San Andreas Fault Line)
http://www.youtube.com/watch?v=MrrLJ4vXHCs
Types of Faults 10-17-11




Normal Fault
Forms at a divergent boundary when two plates (or
blocks of crust) are pulled apart and one slides
down the other
http://www.youtube.com/watch?v=tJDnfT1pqhQ&
NR=1
What type landform can a normal fault cause?
Types of Faults 10-17-11



Reverse Fault
Forms at a convergent plate boundary when two
plates compress and one plate gets pushed up
slightly
http://www.youtube.com/watch?v=4b81nXSVA34&
feature=related
Types of Faults 10-17-11



http://www.youtube.com/watch?v=kakc3OAfuxw&
NR=1
Which type of fault caused the Japan 2011
earthquake 80 miles off the east coast of the
islands? Why do you think that?
Think-Write-Pair-Square
Comparing Earthquakes 10-18-11



How are responses of people in other nations different
than and similar to the responses of people in our
nation?
Learning from Chile’s Mega Quake
http://player.discoveryeducation.com/index.cfm?guidAs
setId=3e15863b-efe8-4c0c-a30d-14d030828777
Kobe Earthquake 1995
http://player.discoveryeducation.com/index.cfm?guidAs
setId=742594a7-a776-4486-9be2-1d8eaa789f0b
Comparing Earthquakes 10-18-11
Subduction Earthquakes
http://player.discoveryeducation.com/index.cfm?guid
AssetId=5d4bb3e6-5766-4f9b-be3e431fb50313b0
Haiti Earthquake
http://player.discoveryeducation.com/index.cfm?guid
AssetId=946ab25a-c19c-4017-b980633d30980183

Seismic Waves and Mercalli Scale

P-Waves – Primary waves that hit the surface first
 http://www.youtube.com/watch?v=2rYjlVPU9U4&feat
ure=related

S-Waves – Secondary waves that hit the surface
second
 http://www.youtube.com/watch?v=en4HptC0mQ4&fe
ature=related

http://www.youtube.com/watch?v=7NqmHtIjCJ0&f
eature=related
Seismic Waves and Mercalli Scale

Love Waves – a transverse wave that is confined to the
Earth’s surface


http://www.youtube.com/watch?v=t7wJu0Kts7w&feature=r
elated
Rayleigh Waves – a wave transmitted from epicenter
that is confined to the surface
http://www.youtube.com/watch?v=6cuEqyYIr24&feature=r
elated
 http://www.youtube.com/watch?v=BXFb5GAgZU&feature=related


http://www.youtube.com/watch?v=r4gnO0tSXYk&NR=
1
Seismic Waves and Mercalli Scale

Modified Mercalli Scale
 I,
II, III, IV, V, VI, VII, VIII, IX, X, XI, XII
 Measures the damage to HUMAN structures
Richter Scale
Modified Mercalli
How Volcanoes Form 11-1-11

http://player.discoveryeducation.com/?blnPreview
Only=1&guidAssetId=8565efbe-6f25-42bf-a60c0bea7f34adca
How Volcanoes Change Earth

http://player.discoveryeducation.com/index.cfm?gui
dAssetId=B9361C77-3D3F-4656-9FE7662B909FAEBF&blnFromSearch=1&productcode=
US
Catastrophism vs. Uniformitarianism

Catastrophism is…

Uniformitarianism is…
Catastrophism vs. Uniformitarianism

Mt. St. Helens Eruption
 Which
principle does it support?
 http://www.youtube.com/watch?v=rbgAOfv-W20

The Great Flood
 Which

principle does it support?
The Rocky Mountains
 Which
principle does it support?