Physical Science Review

123456789101112131415
Across
  1. 2. Type of chemical reaction in which one substance breaks down into two or more substances
  2. 5. The temperature at which the pressure of the vapor of a liquid is equal to the external pressure acting on the surface of the liquid
  3. 7. The smallest particle of an element that still retains the properties of the element
  4. 10. Compound that has water chemically attached to its atoms and written into its chemical formula
  5. 12. Particle with an electric charge of 1-
  6. 13. Substance with atoms that are all alike
  7. 14. Sum of the number of protons and neutrons in an atom's nucleus
  8. 15. A substance that speeds up a chemical reaction
Down
  1. 1. Force that holds atoms together in a compound
  2. 3. State of matter where particles are aligned in a crystalline structure
  3. 4. Type of bond formed when atoms share electrons
  4. 6. Pattern of investifation procedures that helps scientist test a hypothesis
  5. 8. Positive particles in the nucleus of an atom
  6. 9. Anything that takes up space and has mass
  7. 11. Substances that slows down or prevents a chemical reaction from occurring