1. Volcanoes

2. Lava cooling as it falls into the ocean.

3. Lava flow
Scientists in Hawaii watch a huge lava flow.

4. What is the name of molten rock that erupts from a volcano?
Magma
Lava
crust

5. What is the name of molten rock inside the earth?
Magma
Lava
crust

6. What is the name of the tube that leads up to the vent?
Sill
Conduit (pipe)
throat

7. What is the name of the bowl-like opening in the volcano?
Sill
Crater
throat

8. Do ash clouds flow down the sides of the volcano?
No, they rise into the air.
Yes, they flow down the sides like lava.

9. Ash cloud
Lava flow
Earth’s crust
crater
Magma chamber
Side vent
Conduit (pipe)