Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

[Q]: Question: Mixtures of materials called alloys contain at least one of what type of material? Answer: metal
[A]: Alloys are mixtures of materials, at least one of which is a metal.


[Q]: Question: The number of electrons in the outer energy level determines what property of nonmetals? Answer: reactivity
[A]: Some nonmetals are very reactive, whereas others are not reactive at all. It depends on the number of electrons in their outer energy level.


[Q]: Question: What makes water change to a different state? Answer: temperature
[A]:
The state the water is in depends upon the temperature. Each state (solid, liquid, and gas) has its own unique set of physical properties.


