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1 It's a Volcano!
How could a volcano make day look like night? 7
2 How Volcanoes Occur
What floats to the surface before a volcano erupts? 11
3 Wake-up Call
Can a volcano erupt after being inactive for more than 100 years? 19
Robots to the Rescue
Why do scientists use robots to help study volcanoes? 24
Some volcanic rock is so light it can float.
4 A Useful Blast
How can a volcano be helpful to humans? 27
5 Volcano Warning!
How could you know that a volcano is about to blow? 33
6 Survival Tips
What should you know if you live near an active volcano? 39
True Statistics 43
Important Words 46
About the Author 48