What is tectonic drift?

How do earthquakes and volcanoes happen?

What would be difficult to move if the whole planet was solid?

What is the mantle?

How does this impact the movement of the plates?

Where did the energy for the Earth come from?

What is Albert Einstein's famous equation?

What did the Earth start as?

What is a nebula?

Where did the Sun form?

What started the Sun's nuclear fusion?

What does it mean when the Earth has an outside layer of rock that is a good insulator?

What does the inner core of the Earth have a high proportion of?

compared to the melting point of iron?

What enables the inner core to remain solid despite the extreme temperatures?

What is believed to provide the energy for movement of the tectonic plates on the surface?