When Magma Meets Water | Breakthrough

What is the initial form of basalt rock before it is melted into lava?

• Large boulders

• Fine sand

• Quarter-inch gravel

• Powder

What is the approximate temperature range of the lava when it pours out of the oven?

• 100-200 degrees Fahrenheit

• 500-1000 degrees Fahrenheit

• 2050-2100 degrees Fahrenheit

• 5000-6000 degrees Fahrenheit

What happens to water molecules when they are heated by lava and turn into steam?

• They become denser and shrink.

• They spread out and take up more space.

• They combine to form larger molecules.

• They freeze into ice.

What type of eruption occurs when water running deep underground rapidly boils and expands due to magma?

• Effusive eruption

• Strombolian eruption

• Phreatomagmatic eruption

• Pelean eruption