TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Some meteorites are made of iron and nickel and are thought to be very similar to the core of the earth.

SOLUTION: Some meteorites are made of iron and nickel and are thought to be very similar to what part of the earth?

PROBLEM: Skeletal muscles must work in pairs to move bones back and forth at a joint because they can only contract.

SOLUTION: Skeletal muscles must work in pairs to move bones back and forth at a joint because they can only do what?

PROBLEM: Supernatural term refers to entities, events or powers regarded as being beyond nature, and cannot be explained by scientific means.

SOLUTION:
What term refers to entities, events or powers regarded as being beyond nature, and cannot be explained by scientific means?