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Volcanic Eruptions - Challenging

Authored by Timothy Gutsell

Science

4th - 5th Grade

Used 5+ times

Volcanic Eruptions - Challenging
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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. What keeps the magma under the ground?

Lithostatic pressure - earth pushing down

Magmastatic pressure - magma pushing up

Rock strength

All 3 of the answers

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2. What is magma made of?

dissolved gasses and melted glass

dissolved gasses and melted minerals

dissolved rocks and melted minerals

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3. What can happen if the weight of the rock above the magma becomes too low?

It can trigger an eruption

It can trigger an earthquake

It can start a tsunami

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4. What is it called when the weight of the rock above the magma becomes to low?

uploading

unloading

losing weight

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5. What causes unloading?

Landslides, errosion and melting glaciers

Only errosion and melting glaciers

Only melting glaciers

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

6. What happens during 'hydrothermal alteration'?

soft clay is tirned into hard stone

hard stone is turned into soft clay

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