APES: Chemistry & Physics Vocab

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Across
  1. 4. A substance that contributes hydrogen ions to a solution
  2. 6. A particle that contains more than one atom
  3. 8. The rate at which work is done
  4. 11. An addition to a system
  5. 12. A molecule containing more than one element
  6. 14. The time it takes for one-half of an original radioactive parent atom to decay
  7. 15. The amount of energy used when a 1-watt electrical device is turned on for 1 second
  8. 17. A smaller organic biological molecule that does not mix with water
  9. 19. The ability to do work or transfer heat
  10. 20. Anything that occupies space and has mass
  11. 21. Randomness in a system
  12. 22. A loss from a system
Down
  1. 1. A substance that contributes hydroxide ions to a solution
  2. 2. A critical component of living organisms made up of a long chain of nitrogen-containing organic molecules know as amino acids
  3. 3. A measurement of the amount of matter an object contains
  4. 5. Atoms of the same element with different numbers of neutrons
  5. 7. The measure of average kinetic energy of a substance
  6. 9. The smallest particle that can contain the chemical properties of an element
  7. 10. A highly organized living entity that consists of the four types of macromolecules and other substances in a watery solution, surrounded by a membrane
  8. 13. A compound composed of carbon, hydrogen, and oxygen atoms
  9. 16. A substance composed of atoms that cannot be broken down into smaller, simpler components
  10. 18. A massless packet of energy that carries electromagnetic radiation at the speed of light