Download The Earths Crust Quick Key

GCSE Chemistry Unit 1
The Earths Crust.
Completely fill in each circle with a black pen, making sure you do not go outside.
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1. How many layers make up the Earth?
A
1
B
2
C
4
D
3
E
5
2. What is the name given to pieces of the Earth’s crust and the upper mantle that are cracked in a number of
places?
A
the lithosphere
B
tectonic plates
C
the continents
D
the land
E
the crust
3. Approximately how far each year does the crust and upper mantle layer move each year?
A
2 cm
B
2 mm
C
2m
D
They do not move
E
2 km
4. What causes the tectonic plates to move?
A
conduction in the mantle
B
conduction in the core
C
convention currents in the mantle
D
conduction currents in the core
E
radiation in the crust
5. Which layer is the thickest and which is the thinnest? Choose the correct row from the table below.
A
B
C
D
E
Thickest
Crust
Outer core
Mantle
Inner core
Mantle
Thinnest
Mantle
Inner core
Inner core
Outer core
Crust
KS4/Chemistry/C1.7-Changes in the Earth and its Atmosphere/PJMcCormack/9-6-14
The diagram below shows the two different theories that scientists used to explain the formation of mountain
ranges on Earth.
6. How are mountain ranges formed according to the Early theory
A
The Earth cools and shrinks, forming wrinkles in the crust.
B
The Earth heats and expands so molten rock and minerals escape through the crust.
C
The C Earth cools and shrinks so the crust cracks into pieces.
D
The Earth heats and expands causing tectonic plates to rise.
7. What produces the heat to move the crust and upper mantle layer?
A
Chemical reactions in the mantle
B
Chemical reactions in the core
C
radioactive processes in the core
D
radioactive processes in the mantle
E
convecton of the gases in the atmosphere
8. The diagram below represents a section close to the surface of the Earth.
KS4/Chemistry/C1.7-Changes in the Earth and its Atmosphere/PJMcCormack/9-6-14
Which row in the table correctly shows the tectonic plates that are moving towards each other, and the
speed with which they are moving?
A
B
C
D
9. At which points in the diagram above is an earthquake likely to occur?
A
V, W and Y
B
V, X and Z
C
W, X and Z
D
X, Y and Z
E
an earthquake will not occur
10. How are earthquakes and volcanoes formed?
A
B
C
D
E
by the shrinking of the crust
by a tsunami
convection currents in the atmosphere
radioactive processes in the core
sudden movement of the tectonic plates
END OF QUESTIONS
KS4/Chemistry/C1.7-Changes in the Earth and its Atmosphere/PJMcCormack/9-6-14