Download Warm-Up - mssarnelli

WARM-UP
1)
Update your Table of Contents for today’s
activities
Date Session
#
8/29
2)
2
Activity
Page
#
Vocabulary Schedule Directions
4
Vocabulary Set 1 (write it on the back of the schedule)
4
Plate Tectonics Note Guide
5
Read over the vocabulary schedule for your
science vocabulary cards and paste in on page 4
SET 1 VOCABULARY LIST
1.
2.
3.
4.
5.
6.
7.
8.
9.
Lithosphere
Asthenosphere
Convection Current
Law of
Uniformitarianism
Tectonic Plates
Divergent Boundary
Convergent
Boundary
Transform Boundary
Subduction
10.
11.
12.
13.
14.
15.
Pangaea
Continental Drift
Mid-Ocean Ridge
Rift Valley
Magnetic Reversal
Hot Spot
QUICK DRAW!
 With
your Expo marker I want you
to draw the most detailed diagram
you possibly can of the layers of the
Earth!
 Compare
with your neighbor to see
what you are missing!
 Make
sure to include labels!
QUICK REVIEW…
 Layers
Earth




of the
Crust (2 types)
Mantle
Outer Core
Inner Core
 Earth’s
crust and
the very top of the
mantle form the
lithosphere
 Lithosphere sits
on top of the
asthenosphere
WHAT DO WE MEAN WHEN WE SAY
“EARTH’S HISTORY?”
Study Jams Slide Show: How did all of these
things happen?

http://studyjams.scholastic.com/studyjams/jams/s
cience/rocks-minerals-landforms/landforms.htm
HOW???
LAW OF UNIFORMITARIANISM
 Law
of
Uniformitarianism- the
idea that Earth is an
always changing place
 The same forces of
change are at work
today that were at work
in the past.
 Some changes are
gradual; some changes
are fast.
T-CHART:
SLOW CHANGES
VS.
FAST CHANGES
SOME THINGS HAPPEN SLOWLY,
WHILE OTHERS HAPPEN
QUICKLY, BUT WHAT THEY BOTH
HAVE IN COMMON IS THAT
MOVEMENT CAUSES THESE
CHANGES…BUT MOVEMENT OF
WHAT????
HINT:
TECTONIC PLATES

The Lithosphere broken into many large and small
slabs of rock called tectonic plates and where two plates
meet, a lot of changes can occur.
TECTONIC PLATES
 The
How do
the
tectonic
plates
move?
plates move because
of convection currents.
 The hot, soft rock in the
mantle rises…then it
cools, and sinks.
TECTONIC PLATES
There are 3
types of
plate
boundaries
1.
Divergent
2. Convergent
3. Transform
DIVERGENT

Key word: Divide
DIVERGENT
DIVERGENT
 What
occurs at this
boundary?
New Crust
Forms
Mid-ocean
ridges
Rift valleys
Earthquakes
Volcanoes

CONVERGENT
Key
3
word: Collide
types of convergent:
Continentalcontinental
Oceanic-oceanic
Oceanic- continental

CONVERGENT:
CONTINENTAL-CONTINENTAL
CONVERGENT:
CONTINENTAL-CONTINENTAL
What
occurs at
this boundary?
High
mountains
Earthquakes
CONVERGENT:
OCEANIC-OCEANIC
CONVERGENT:
OCEANIC-OCEANIC
 What
occurs at this
boundary?
Deep-ocean
trenches
Volcanic
islands
Earthquakes

CONVERGENT:
OCEANIC- CONTINENTAL
CONVERGENT:
OCEANIC- CONTINENTAL
What
occurs at
this boundary?
Deep-ocean
trenches
Coastal
mountains
Earthquakes
TRANSFORM

Key word:
Slide
TRANSFORM
TRANSFORM
What
occurs at this
boundary?
Faults
Earthquakes

BUT WHAT ABOUT SUBDUCTION?
 When
one plate sinks under
another plate
What is
Subduction? CAN ONLY HAPPEN…
 Continental
& oceanic plate
collide = oceanic plate
ALWAYS sinks because it is
more DENSE.
 Oceanic
& oceanic plate
collide = the older more
dense plate sinks!
PLATE MOTION SIMULATION

http://www.sepuplhs.org/middle/iaes/students/si
mulations/SEPUP_Plate_simulation.swf
REAL WORLD EXAMPLES &
PICTURES


Using the textbook search for a real-world
example and a picture you can copy to complete
your chart.
You may work with a partner and the
expectation is that this will be done before you
leave!
HOMEWORK
 Vocabulary
Set 1 – Day 1
WARM-UP
1)
Update your Table of Contents for today’s
activities, and take out your vocabulary cards to
be checked!
Date Session
#
8/31
2)
3)
3
Activity
Page
#
Why Doesn’t the Earth Get Bigger?
6
Milky Way Plate Tectonic Lab
7
The Story of Earth’s History Foldable
8
Put your Science Brochure in the basket!
Answer the following on page 6 using your Plate
Tectonics Note guide to help:
If new crust forms at divergent boundaries,
why doesn’t Earth get any bigger?
ANSWER TO WARM-UP:
At Divergent boundaries, two plates are splitting
apart allowing magma to rise up in between and
it forms new crust as it cools.
BUT….at the same time
 At Convergent boundaries, where subduction is
occurring, the plates are being melted back into
the mantle.

SO, the plate movements work together as a
recycling system…crust is destroyed at the same
rate it is created, and the Earth stays the same
size!
REVIEW: PLATE TECTONICS

Please get your chart out so we can do a quick
review!
REVIEW:
MILKY WAY PLATE TECTONICS LAB


We will be doing a mini-lab with Milky Way bars
to further demonstrate your understanding of
plate tectonics and the features formed by plate
movement.
You must complete the lab guide and you must
follow my instructions at all times!
REMEMBER…
It is the movement of the plates that cause the
majority of changes on Earth.
 Some changes happen quickly, while others
happen slowly, but none have been more Earth
changing than this…

HOW?
CONTINENTS ADRIFT
MOVIE QUESTIONS: (Things to listen for)
 What
was the theory of moving
continents called?
 What evidence was stated to prove this
theory?
 What was later discovered on the ocean
floor to support this theory?
 Be able to explain sea-floor spreading.
 And again, review how the plates are
actually able to move.
EARTH’S HISTORY FOLDABLE
2
pieces of copy paper
Label each flap &
staple at the top fold The Story of Earth’s
History
Pangaea
Continental Drift
Sea Floor Spreading &
Magnetic Reversal
PANGAEA
Scientist Alfred
Wegener noticed that
Earth’s continents
seemed to fit together
like a puzzle, so he
hypothesized that
they were once joined
in a single “super
continent” called
Pangaea
CONTINENTAL DRIFT
This led to his Theory of Continental Drift – that
although the continents were once joined, they
slowly drifted apart!
Wegener’s Evidence:
 1. Matching rock layers on different continents


2. Matching fossils on different continents
3. Evidence of climate change – tropical plant
fossils in cold places, ice scratches in warm places
WE WILL FINISH NEXT TIME…
 Tape
your foldable into page 8 of
your notebook!
 Make
sure you complete Vocab Day 2
for homework (due next Wednesday)
WARM-UP
1)
Update your Table of Contents for today’s
activities, and take out your vocabulary cards to
be checked!
Date Session
#
9/5
2)
4
Activity
Page
#
Columbian Exchange – The Science of Social Studies
9
Sea-floor Spreading Lab Guide
10
Read the Continental Drift/Columbian Exchange
article and answer the 2 questions, then tape it
into your notebook!

Finish the Foldable!
 Sea floor spreading
 Magnetic reversals
MAGNETIC REVERSALS



Minerals in the magma that rises through the
cracks in the sea floor align themselves with
Earth’s magnetic poles (North and South)
As the rock cools, the minerals stay fixed in this
position, like a compass
Earth’s poles periodically reverse. The
“stripes” of rock along the ocean floor record
these reversals.
Magnetic
Reversals Demo
SEA FLOOR SPREADING


The sea floor spreads apart at divergent
boundaries and forms new crust as well as
features such as Mid-Ocean ridges
The rock closest to the crack is the youngest
while the rock further from the crack is older
(The oldest ocean floor is still younger than
continental crust)
SEA FLOOR
SPREADING LAB

Read the “Introduction to Sea Floor
Spreading” silently to yourself
 Quickly
color & cut out your sea floor
strip and tape the “orange” ends
together – 5 minutes!
 Cut
Slits A, B & C as demonstrated!
SEA FLOOR
SPREADING LAB
Thread the “blue” ends up through Slit
B from the bottom
 Pull one side down through Slit A and
the other down through Slit C
 Answer the questions
on your lab guide

HOMEWORK
 Vocab
Set 1 – Day 3 “Relationship
Set Day”
WARM-UP
1)
Update your Table of Contents for today’s
activities, and take out your vocabulary cards to
be checked!
Date Session
#
9/7
2)
5
Activity
Page
#
Hawaii…How? & Hot Spot Notes
11
Mapping the Hawaiian Islands
12
Read Hawaii…How? & tape it into your
notebook at the top of the page (leave room to
write underneath it)
HOT SPOTS
 Hot
spots occur far from plate
boundaries when a plume of
magma rises and melts the crust above it
 As the plate moves, the hot spot remains,
creating a series of volcanic islands or
volcanoes
 Hot spots help measure plate movement
because the hot spot stays in one place while
the plate above it moves
HOT SPOT VIDEO

Discovery Education: Hot Spots – The Formation
of the Hawaiian Islands
HOT SPOT DEMO
 As
you watch the demo write a
a 3-4 sentence description of what you
see happening:
- Analyze the movement of the screen
- What does the screen represent?
- What does the shaving cream
represent?
- What does the side view look like?
MAPPING THE HAWAIIAN HOT
SPOTS!
1) Use the latitude and longitude
coordinates to locate each of
the Hawaiian islands on the
map
2) Plot each island on the map –
label it with the name and age
LATITUDE & LONGITUDE REVIEW
 Latitude
– latitude lines are the horizontal
lines that are measured by how far North or
South they are of the Equator (0) – usually
written first
 Longitude
– longitude lines are the vertical
lines that are measured by how far East or
West they are of the Prime Meridian (0) –
usually written second
 Using
latitude and longitude is very similar
to using the X, Y coordinates on a graph
CALCULATING THE RATE OF
MOVEMENT
Formula:
velocity = distance/time
Example for Midway Island:
Velocity = 2,432/27,700,000 = ?
How did we turn 27.7 into 27,700,000?
27.7 x 1,000,000 = 27,700,000
HOMEWORK


Complete & Study Practice Quiz
The first Vocabulary Quiz is NEXT
CLASS!