NSEW Quiz 2009 Level 1

Time Elapsed: 0 minutes Time Remaining: 0 minutes Total Time: 0 minutes   Page 1 of 6     Round 1: Chemistry      1. When a gas is cooled it turns into a liquid what is this called?*   Melting Condensing Freezing Evaporating     2. S is the chemical symbol for which element?*   Helium Tin Sulphur Argon     3. What pH value indicates a neutral solution?*   pH 1 pH 4 pH 10 pH 7     4. What is an example of an irreversible change?*   Melting Freezing Burning Dissolving     5. Which type of rock would be used to tile a roof with?*   Granite Sandstone Slate Marble