What do you think happens when plates move away from each other? Do plates ever move toward each other? What would happen if two plates met? What might happen if plates slide past one another?
How does the rock of the Earth’s mantle move?
Why are there hungry people in the world? Are there different reasons for different parts of the world, for example the United States versus Africa? What are some solutions?
What would it be like if you really dug a hole through the Earth to China?