Magma

The video tutorial explains that magma is melted rock beneath the Earth's surface. Its viscosity varies based on composition and temperature, typically ranging from 700 to 1300 °C. When magma reaches the Earth's surface, it becomes lava, often occurring at plate boundaries and hot spots.

What is the term used for melted rock found beneath the earth's surface?

• Sediment

• Magma

• Basalt

• Lava

Which factor does NOT affect the viscosity of magma?

• Temperature

• Composition

• Pressure

• Color

What is the typical temperature range of magma?

• 1300 to 1800 °C

• 500 to 1000 °C

• 1000 to 1500 °C

• 700 to 1300 °C

When magma reaches the earth's surface, what is it called?

• Basalt

• Granite

• Lava

• Obsidian

Where does the transformation of magma to lava typically occur?

• In the ocean

• In the atmosphere

• At plate boundaries and hot spots

• In the desert