Bill Nye the Science Guy VOLCANOES (Video Guide) - Free Printable

Here are the answers to fill in the blanks on your worksheet based on the "Bill Nye: The Science Guy" episode about volcanoes.

1. Some of the oldest land on Earth came from volcanoes.
2. Volcanoes are formed when hot magma rock finds its way to the surface.
3. What's the name of the volcano which blew up in the 1980s? Mount St. Helens
4. All volcanoes build up the Earth's crust.
5. Where do volcanoes usually occur? Along plate boundaries (or where tectonic plates meet).
6. The rocks on the Hawaiian Islands are younger than rocks on the Southern Island. *(Note: In geology, islands further away from the hot spot are older).*
7. Volcanoes erupt because there are gases trapped in the magma deep inside the Earth.
8. A volcano is like a bottle of soda because they both have a lot of pressure.
9. What's a skylight? A hole in the roof of a lava tube.
10. What happens when the lava "meets" the ocean? It creates steam and new land (rock).
11. When volcanoes stop erupting, they form a huge bowl in the ground called a caldera.
12. What are the names of the three types of volcanoes? Shield, Cinder Cone, and Composite (or Stratovolcano).
13. How hot is lava? About 2,000 degrees Fahrenheit (or roughly 1,000 degrees Celsius).
14. Why do scientists study volcanoes? To predict eruptions and keep people safe.
15. A stone wind is a wind loaded with hot volcanic ash.
16. What's an extinct volcano? A volcano that will never erupt again.
17. A volcano that hasn't erupted in 200 years is called: dormant.

Follow-up Questions:
*(These depend on what you personally watched, but here are common facts from the show)*
1. List two facts you have learned from this video.
a. Magma is underground, but it is called lava once it reaches the surface.
b. Volcanoes can create new islands and landforms.
2. What question(s) may you still have about volcanoes after watching this episode?
*(This is for you to answer! Example: How do we know exactly when a volcano will explode?)*