1. Which of the following is one of the three states of matter?   Water   Liquid   Metal   Air   Hint Half-n-half Clue   2. A chemical change takes place when ice melts to water.   True   False   3. Weight is the same as mass.   True   False   4. Mass is the amount of matter in a substance.   True   False   5. Name the scientist who discovered the Law of Gravitation.   Euclid   Galileo   Kepler   Newton   Half-n-half Clue   6. The weight of an object from the Earth increases when taken to Moon.   True   False   7. A change of state from liquid to solid typically occurs when there is a sudden rise in temperature.   True   False