Question

drag the missing word into place
when you take away heat, you take away . the
molecules in water slow down as they get colder and eventually stop
moving: liquid becomes solid.
molecules energy liquid

Explanation:

Heat is a form of energy. When heat (energy) is removed from water, the kinetic energy of its molecules decreases. As per the text, molecules slow down (due to less energy) and eventually stop moving (liquid to solid phase change). "Molecules" is already mentioned in the text later ("the molecules in water...") and "liquid" is also described in the context (liquid becomes solid). So the logical fit is "energy".

Answer:

energy