Wich of these BEST shows a change from potential to kinetic energy? Choices

A: A sandwich at lunch helps a students run a race.

B: Electricity making a bulb light up.

C: Transfer of heat trough electromagnetic waves.

D: A ball sitting at the top of the hill.

How hot is the suns corona? (integrated science)

Nan element’s square on the periodic table, the number with the greatest numerical value represents the

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.