Science: Middle School: Grades 6, 7 and 8 Quiz - Earthquakes and Volcanoes 1 (Questions)

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Earthquakes are measured on the Richter scale. Earthquakes involve a sudden release of energy in the Earth's crust whilst a volcano means an opening or rupture in the crust.

See how much you know about these natural phenomena in the first of three quizzes on earthquakes and volcanoes.

1. The earth is made up of how many layers?
[ ] 2
[ ] 3
[ ] 4
[ ] 6
2. What is the name of the earth's thin surface layer?
[ ] Crust
[ ] Mantle
[ ] Shell
[ ] Veneer
3. Molten rock inside the earth has what name?
[ ] Lava
[ ] Magenta
[ ] Magma
[ ] Silica
4. What instrument is used to measure an earthquake?
[ ] Anemometer
[ ] Galvanometer
[ ] Seismometer
[ ] Shakeometer
5. What is the name for the main opening in a volcano?
[ ] Chimney
[ ] Downpipe
[ ] Vein
[ ] Vent
6. The earth's crust is made up of separate pieces called what?
[ ] Plates
[ ] Platters
[ ] Saucers
[ ] Slabs
7. Which of these areas is unlikely to suffer an earthquake?
[ ] California
[ ] Japan
[ ] New Zealand
[ ] Scandinavia
8. What type of volcano has not erupted for many years but could still do so?
[ ] Dormant
[ ] Extinct
[ ] Snoozing
[ ] Somnolent
9. Why doesn't the UK have any active volcanoes?
[ ] It doesn't have high enough mountains
[ ] It doesn't lie on a plate boundary
[ ] It is surrounded by sea
[ ] The earth underneath isn't hot enough
10. The earth's core is mainly made up of which metal?
[ ] Copper
[ ] Iron
[ ] Magnesium
[ ] Zinc
Science: Middle School: Grades 6, 7 and 8 Quiz - Earthquakes and Volcanoes 1 (Answers)
1. The earth is made up of how many layers?
[ ] 2
[ ] 3
[x] 4
[ ] 6
These are the inner core, the outer core, the mantle and the crust
2. What is the name of the earth's thin surface layer?
[x] Crust
[ ] Mantle
[ ] Shell
[ ] Veneer
Although 'thin' it can be between approx. 5-60+ kms thick
3. Molten rock inside the earth has what name?
[ ] Lava
[ ] Magenta
[x] Magma
[ ] Silica
It's called lava once it appears at the surface
4. What instrument is used to measure an earthquake?
[ ] Anemometer
[ ] Galvanometer
[x] Seismometer
[ ] Shakeometer
5. What is the name for the main opening in a volcano?
[ ] Chimney
[ ] Downpipe
[ ] Vein
[x] Vent
6. The earth's crust is made up of separate pieces called what?
[x] Plates
[ ] Platters
[ ] Saucers
[ ] Slabs
7. Which of these areas is unlikely to suffer an earthquake?
[ ] California
[ ] Japan
[ ] New Zealand
[x] Scandinavia
It isn't in an unstable part of the Earth's crust
8. What type of volcano has not erupted for many years but could still do so?
[x] Dormant
[ ] Extinct
[ ] Snoozing
[ ] Somnolent
The name dormant suggests that it's 'sleeping'!
9. Why doesn't the UK have any active volcanoes?
[ ] It doesn't have high enough mountains
[x] It doesn't lie on a plate boundary
[ ] It is surrounded by sea
[ ] The earth underneath isn't hot enough
10. The earth's core is mainly made up of which metal?
[ ] Copper
[x] Iron
[ ] Magnesium
[ ] Zinc
Approximately 90% iron, 10% nickel