How do earthquakes, volcanoes and continental drift occur?

What is tectonic drift?

What are tectonic plates?

How do earthquakes and volcanoes happen?

How much do the plates move per year?

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

What does the state of the inner layers of the Earth exist as?

What is the liquid that makes up the inner layers of the Earth?

What is the crust?

How thick can the crust be?

What can the thickness of the crust compares with the size of the Earth be likened to?

What is the mantle?

What state does the mantle exist in?

How does this impact the movement of the plates?

What is the outer core?

What state does the outer core exist in?

What is the inner core?

What state does the inner core exist in?

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?

What is the temperature of the inner core 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?