All matter on earth contains energy

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

Which material burns faster? metal aluminum

Which of these statements describes the size of an atom? a. an atom is larger than a sheet of aluminum foil. b. an atom is small but can be seen with just our eyes. c. an atom is the size of a plastic building block. d. an atom is tiny and cannot be seen without magnification.