instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Solid form do alkali metals take at room temperature.
answer:
What form do alkali metals take at room temperature?


question:
The thalamus helps to regulate consciousness, arousal, and sleep states.
answer:
What helps to regulate consciousness, arousal, and sleep states?


question:
Particles of different densities exert different amounts of pressure.
answer:

Particles of different densities exert different amounts of what?