Geology
What is the structure of the solid earth and how has it changed over time?
What is the structure of the solid earth and how has it changed over time?
How do we know the Earth has layers and what are the properties of those layers?
How do we know how old Earth is?
How do we know the tectonic plates are moving and what causes this movement?
What does the movement of tectonic plates cause?
How are rocks related to plate tectonics?