instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Water contains 3 atoms.
answer:
How many atoms does water contain?


question:
Learning to get used to something after being exposed to it for a while is associated with habituation learning.
answer:
Learning to get used to something after being exposed to it for a while is associated with what kind of learning?


question:
The outer core is made of liquid metal.
answer:

What is the outer core made of?