How hot is the center of the earth?
The earth's inner core reaches temperatures of up to 12,600 degrees Fahrenheit (7,000 degrees Celsius).
How rocks are formed;
A timeline and photos-and what techniques scientists use to study rocks;
Surprising True facts that will shock and amaze you!
Table of Contents
1 Rocks are Everywhere: What are rocks and where can they be found? 7
2 Making Rocks: How does the rock cycle work? 15
3 Reshaping Rocks: What are some of the forces that can affect rocks? 29
Rocks from Outer Space: What kinds of rocks come from space? 34
4 Rocks and People: How have people user rocks throughout history? 37
True Statistics 44
Important Words 46
About the Author 48