1. Chlorine is added to drinking water to kill microbes that cause illness. This is known as   Chlorination   Elimination   Microbe Termination   Vaporization   Hint Half-n-half Clue   2. Water that is suitable for drinking is known as   Potable Water   Chlorinated Water   Distilled Water   Natural Water   Half-n-half Clue   3. What is formed when hydrogen burns in oxygen?   Water   Carbon Dioxide   Hydrogen Peroxide   Carbon Monoxide   Half-n-half Clue   4. What falls to the ground when clouds become too heavy?   Rain (Raindrops)   Lightning   Thunder   Mineral Salts   Half-n-half Clue   5. Water exerts pressure on the walls and the bottom of the container in which it is placed.   True   False   6. What is the boiling point of water?   0 oC   32 oC   50 oC   100 oC   Half-n-half Clue   7. Steam is the _______ form of water.   Gaseous   Solid   Liquid   Impure   Half-n-half Clue