What Causes Mountains, Volcanoes, And Earthquakes?
It’s very easy to take the time to acknowledge the beauty of a mountain or a volcano, or the sheer horror of an earthquake, but do you even know how the things are formed? Let’s find out!
- 1.Earth has 3 distinct layers. Choose the best answer with the layers from the outside inward.
- A.
Crust, core, mantle
- B.
Crust, mantle, core
- C.
Mantle, crust, core
- D.
Mantle, core, crust
- E.
Core, mantle, crust
- 2.We live on the Earth's surface, also known as
- A.
Crust
- B.
Mantle
- C.
Core
- 3.The thinnest Earth's layer
- A.
Core
- B.
Mantle
- C.
Crust
- 4.The Earth's crust is made of
- A.
Wood
- B.
Rock
- C.
Water
- D.
Metal
- 5.The mantle is
- A.
Hot
- B.
Cold
- C.
Warm
- D.
Chilly
- 6.Although the mantle is made of rock, the lower part of the mantle is
- A.
Soft
- B.
Hard
- 7.Part of the hot and soft lower mantle can reach the Earth's surface through
- A.
Erosion
- B.
Volcanoes
- C.
Glaciers
- 8.The hottest Earth's layer is
- A.
Crust
- B.
Mantle
- C.
Core
- 9.The core can be divided into two parts
- A.
Outer core of solid iron and a liquid iron layer
- B.
Outer core of liquid or molten acid and a solid iron layer
- C.
Outer core of liquid or molten iron and a solid limestone layer
- D.
Outer core of liquid or molten iron and a solid iron layer
- 10.What keeps the inner core solid?
- A.
Temperature
- B.
Pressure
- C.
Wind
- 11.Earth's crust is made up of many pieces of rock known as
- A.
Valleys
- B.
Plates
- C.
Bowls
- 12.Earth's plates fit together like pieces of jigsaw puzzle
- A.
True
- B.
False
- 13.There are ________ major plates
- A.
4
- B.
7
- C.
12
- D.
10
- 14.Most of North America belongs to
- A.
Pacific Plate
- B.
North American Plate
- C.
Eurasia Plate
- 15.California is on the North American Plate and the ___________
- A.
Eurasian Plate
- B.
Pacific Plate
- C.
South American Plate
- D.
Atlantic Plate
- 16.The plates float on the soft rock of the
- A.
Crust
- B.
Mantle
- C.
Core
- 17.Pressure and heat within the Earth produce currents in the soft rock of the mantle and cause it to move. This is what causes the plates to move
- A.
True
- B.
False
- 18.Plate movement is very __________only a few _________ each year
- A.
Slow, inches
- B.
Slow, centimeters
- C.
Fast, feet
- D.
Fast, miles
- 19.This is not an example of a plate movement
- A.
Push together
- B.
Pull apart
- C.
Float by itself
- 20.Plate movement can cause Earth's landforms to change
- A.
True
- B.
False
- 21.When plates collide, __________ is released
- A.
Heat
- B.
Water
- C.
Energy
- 22.This is not an example of landform changes when plates collide
- A.
Mountain rises
- B.
Volcano erupts
- C.
Deep trenches form
- D.
Valley forms
- 23.Andes Mountains is an example of
- A.
Plates colliding
- B.
Plates pulling apart
- 24.Africa's Great Rift Valley is an example of
- A.
Plates colliding
- B.
Plates pulling apart
- 25.When plates pull apart
- A.
New sea floor is formed at the ridges
- B.
Sea floor is lost
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