Question: Choose your answer.

A device that converts light energy into electricity used in many handheld calculators is a
My Answer: photovoltaic cell.

Question: Choose your answer.

Falling and rising air and water molecules inside of clouds are believed to be factors in the formation of lightning. Which kind of energy transfer is taking place to cause this weather phenomenon?
My Answer: mechanical to electrical

Question: Choose your answer.

The boiling of water results in a physical change in matter from
My Answer: liquid to gas.

Question: Choose your answer.

Which type of organism is the best at fixing nitrogen?
My Answer:
bacteria