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Transcript
Jeopardy
Plate Tectonics
“ON THE MOvE” wiTH PlaTE
tectonics!
Earth’s
Layers
Plate
Boundaries
Geologic
Activity
Evidence
Rocks!
Rock Cycle
100
200
300
400
100
200
300
400
100
200
300
400
100
200
300
400
100
200
300
400
100
200
300
400
Final Jeopardy!!
Earth’s Layers
100

What do scientists hypothesize the core is
made of?

Iron and nickel
Earth’s Layers
200
How are the inner and outer core
different?

The inner core is solid due to high pressure
and the outer core is liquid due to high
temperatures.
Earth’s Layers 300


What are the scientific names for the
upper mantle and the middle mantle?
Upper mantle = lithosphere
 Middle mantle = asthenosphere
Earth’s Layers
400

Explain what convection currents are.

Convection is a cycle where hot material rises
and cold material sinks. Inside the mantle of our
Earth, magma goes through this cycle which
moves the tectonic plates.
Plate Boundaries 100

What type of boundary has two plates
that scrape across each other in opposite
directions?

Transform boundary
Plate Boundaries 200

Describe a convergent (subduction)
boundary.

A convergent: subduction boundary is
where two plates come together and one
goes under the other.
Plate Boundaries 300

What kind of boundary creates mountains?
Describe that boundary.

A convergent: buckling boundary makes
mountains; that is when two continental plates
come together and they both push up.
Plate Boundaries 400

Explain how new sea floor/crust is created.

New sea floor/crust is created at a divergent
plate boundary where two plates pull apart.
When the plates pull apart, magma from the
mantle comes up, cools, and hardens into
rock/crust.
Geologic Activity 100

What type of geologic activity is associated
with transform boundaries?

Earthquakes
Geologic Activity 200
 Explain
WHY earthquakes occur
at transform boundaries.
When two plates rub together, it causes
friction and pressure. When the plates
slip, it causes the earth to shake.
Geologic Activity 300

Name three types of geologic activity that
happen at convergent (subduction)
boundaries.
 trenches,
earthquakes, and volcanoes
Geologic Activity 400
 Besides
new crust, what else is created
at a divergent boundary in the ocean?
 What is created at a divergent
boundary on a continent?
 Divergent boundaries in the ocean
= mid-ocean ridges and volcanoes
 Divergent boundaries on
continents = rift valleys
Evidence100


Scientists believe that million of years ago all
the continents were connected – what was
that large land mass called?
Pangaea
Evidence 200

Scientists have found fossils of the same
animal species on multiple continents, but
the animal could not swim, so how did the
animal get to the different continents?
 If
the animal wasn’t able to swim
to the different continents, this
suggests that the continents must
have been connected.
Evidence 300

Scientists know that plants and animals need a
warmer climate to survive, yet we’ve found fossils
on Antarctica – how’s that possible?

This suggests that long ago Antarctica
used to be located closer to the
equator and had a warmer climate.
Evidence 400

Give three specific pieces of evidence that
led scientists to infer that South America
and Africa used to be connected.
The shape of South America and Africa
look like they fit together
 Animal fossils such as Cynognathus or
Mesosaurus
 Plant fossils such as the Glossopteris
Fern

Rocks100
 What
are tiny pieces of rock called?
 sediment
Rocks 200

Which type of rock is formed from
molten lava that cools and hardens?
 Igneous
Rocks 300

Explain what sedimentary rock is.
Sedimentary rock is made of layers
of tiny pieces of rock (sediment)
pressed together or compacted.
Rocks 400

What are metamorphic rocks?

Metamorphic rocks are made when
sedimentary or igneous rocks are
CHANGED by heat and pressure.
Rock Cycle 100
 What
is it called when
material is added to an area?
deposition
Rock Cycle 200

What is it called when sediment is
pressed together over time to (it
turns sediment into sedimentary
rocks)?
 compaction
Rock Cycle 300

Explain what erosion/weathering is.

Erosion/weathering is when rock is worn down by
water or wind.
Rock Cycle 400


Explain how a sedimentary rock could turn into a
igneous rock.
First, the sedimentary rock needs to heat and
melt into magma. Then, it would need to cool and
harden into igneous rock.
Final Jeopardy


Below is a map that shows geologic activity (volcanoes and
earthquakes) – make an inference about where this geologic
activity is happening.
The majority of the volcanoes and earthquakes appear to occur on or near plate
boundaries – where two tectonic plates meet.