Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[Q]: Changing the shape of an elastic material gives it potential energy.
[A]: Changing the shape of an elastic material gives it what type of energy?


[Q]: Ectothermic vertebrates control body temperature to just a limited extent from the outside by changing behavior.
[A]: What type of vertebrates control body temperature to just a limited extent from the outside by changing behavior?


[Q]: Electrochemistry is the study of the relationship between electricity and chemical reactions.
[A]:
What is the study of the relationship between electricity and chemical reactions called?