1. A salt which absorbs water is called:   Hygroscopic Salt   Anhydrous Salt   Hydrophilic Salt   Hydrophobic Salt   Hint Half-n-half Clue   2. What is the melting point of ice?   0 oC   12 oC   32 oC   100 oC   Half-n-half Clue   3. Conversion of water into water vapor is known as   Vaporization   Boiling   Freezing   Condensation   Half-n-half Clue   4. Objects appear to weigh less in water than air.   True   False   5. It is easy to make lather with hard water.   True   False   6. Earth is known as the blue planet because of the presence of   Water   Atmosphere   The continents   Sky   Half-n-half Clue   7. Hardness of water is caused by the presence of certain salts in it.   True   False