Use the book <span style="text-decoration: underline">Volcanoes</span> from  Classroom Library to answer the following questions

1.  What is a volcano?

2.  What happens when a volcano erupts?

3.  What is the outermost layer of Earth called?

4.  What is the layer called below the crust?

5.  What is magma?

6.  The cracks in Earth's crust are called _________.