Review – The Earth’s Crust
(Experience Canada - page 22-29)
Vocabulary
1. _____
Alfred Wegener
A.
An area of shallow water reaching many kilometers
offshore before the ocean deeps begin.
2. _____
mantle
B.
Alfred Wegener`s theory that the continents were
once joined together and are gradually moving apart.
3. _____
inner core
C.
The thin, brittle outer crust of the Earth.
4. _____
erosion
D.
The study of plate movement to understand the
formation of mountains, volcanoes and earthquakes.
5. _____
Pacific Ring of Fire
E.
The wearing down of the Earth`s surface by water,
ice, wind, plant roots, chemicals, animals and people.
6. _____
outer core
F.
Rivers of ice that form in the mountains and also over
continents during the last ice age.
7. _____
J. Tuzo Wilson
G.
These are caused by hot spots in the Earth`s mantle
and help explain how plates move.
8. _____
lithosphere
H.
Another word for lithosphere.
9. _____
continental drift
I.
Scientists believe this made up of solid nickel and
iron.
10. _____
plate tectonics
J.
A global system of active volcanoes that circles the
Pacific Ocean.
11. _____
convection currents
K.
A period of time in which much of the Earth was
covered by snow, ice, and continental glaciers.
12. _____
crust
L.
A Canadian scientist who helped explain continental
drift; later called Plate Tectonic Theory.
13. _____
continental shelf
M. The German Scientist who first proposed that the
continents were moving.
14. _____
ice age
N.
Found between the inner core and the mantle.
15. _____
glaciers
O.
The thick zone of molten rock (magma) beneath the
Earth`s lithosphere.
Vocabulary
1.
M
Alfred Wegener
A.
An area of shallow water reaching many kilometers
offshore before the ocean deeps begin.
2.
O
mantle
B.
Alfred Wegener`s theory that the continents were
once joined together and are gradually moving apart.
3.
I
inner core
C.
The thin, brittle outer crust of the Earth.
4.
E
erosion
D.
The study of plate movement to understand the
formation of mountains, volcanoes and earthquakes.
5.
J
Pacific Ring of Fire
E.
The wearing down of the Earth`s surface by water,
ice, wind, plant roots, chemicals, animals and people.
6.
N
outer core
F.
Rivers of ice that form in the mountains and also over
continents during the last ice age.
7.
L
J. Tuzo Wilson
G.
These are caused by hot spots in the Earth`s mantle
and help explain how plates move.
8.
C
lithosphere
H.
Another word for lithosphere.
9.
B
continental drift
I.
Scientists believe this made up of solid nickel and
iron.
10.
D
plate tectonics
J.
A global system of active volcanoes that circles the
Pacific Ocean.
11.
G
convection currents
K.
A period of time in which much of the Earth was
covered by snow, ice, and continental glaciers.
12.
H
crust
L.
A Canadian scientist who helped explain continental
drift; later called Plate Tectonic Theory.
13.
A
continental shelf
M. The German Scientist who first proposed that the
continents were moving.
14.
K
ice age
N.
Found between the inner core and the mantle.
15.
F
glaciers
O.
The thick zone of molten rock (magma) beneath the
Earth`s lithosphere.
Review – The Earth’s Crust
(Experience Canada - page 22-29)
Building-Up and Tearing Down Forces
A geologic tug-of-war has been going on for the past four billion years or so. Stresses and strains inside
the Earth have been heaving up mountains and plateaus, creating the highland regions of the planet.
Meanwhile, the forces of erosion keep wearing these highland regions down.
Place the words in the box below on their proper “teams” – the Building-Up forces or the Tearing Down
forces.
Building-up forces - create new crust, give rise to mountains, expand islands and/or continents.
Tearing down forces - occur when the processes of weathering and erosion destroy Earth’s crust; turns
tall, jagged mountains into low, smooth and rounded hills, and break huge large rocks into tiny particles
of sand, silt, and clay.
plate tectonics
folding
freeze-thaw
plant roots
burrowing animals
faulting
sea floor spreading
running water
mountain building
mid ocean ridges
subduction zones
BUILDING-UP FORCES
volcanoes
moving ice
hot spots
wind & sand
chemical erosion/oxidation
sediment deposition
TEARING DOWN FORCES
people
waves
Review – The Earth’s Crust
(Experience Canada - page 22-29)
Building-Up and Tearing Down Forces
A geologic tug-of-war has been going on for the past four billion years or so. Stresses and strains inside
the Earth have been heaving up mountains and plateaus, creating the highland regions of the planet.
Meanwhile, the forces of erosion keep wearing these highland regions down.
Place the words in the box below on their proper “teams” – the Building-Up forces or the Tearing Down
forces.
Building-up forces - new crust is created, give rise to mountains, creates new islands and/or expands
continents.
Tearing down forces - occur when the processes of weathering and erosion destroy Earth’s crust; turns
tall, jagged mountains into low, smooth and rounded hills, and break huge large rocks into tiny particles
of sand, silt, and clay.
plate tectonics
folding
running water
volcanoes
moving ice
people
freeze-thaw
plant roots
mountain building
hot spots
wind & sand
waves
burrowing animals
faulting
mid ocean ridges
chemical erosion/oxidation
subduction zones
sediment deposition
sea floor spreading
BUILDING-UP FORCES
plate tectonics
folding, faulting
volcanoes, sea floor spreading
hot spots
ocean ridges
mountain building
sediment deposition
mid ocean ridges
TEARING DOWN FORCES
plate tectonics
running water
moving ice/glaciers
plants roots
waves, wind and sand
burrowing animals, people
oxidation/chemical weathering
freeze-thaw, subduction zones