Physics, Biology, and Geology UPDATED
ACTUAL Questions and CORRECT
Answers
electron - CORRECT ANSWER a stable elementary particle that is negatively charged and orbits
the nucleus of an atom
gravity - CORRECT ANSWER a force of attraction between two masses
element - CORRECT ANSWER a substance that cannot be reduced to a simpler substance by
chemical means
energy - CORRECT ANSWER a quantity that describes the capacity to do work; a source of usable
power
energy pyramid - CORRECT ANSWER a pyramidal diagram that compares the amount of energy
available at each position, or level, in the feeding order
habitat - CORRECT ANSWER a place in an ecosystem where an organism normally lives
heat - CORRECT ANSWER a form of energy resulting from the temperature difference between a
system and its surroundings
energy transfer - CORRECT ANSWER a change of energy from one form to another (e.g.,
mechanical to electrical, solar to electrical)
environment - CORRECT ANSWER the sum of conditions affecting an organism, including all
living and nonliving things in an area, such as plants, animals, water, soil, weather, landforms, and air