1. The fraction of an iceberg submerged below the water surface is   9 / 10   1 / 5   1 / 10   4 / 5   Hint Half-n-half Clue   2. The density of oxygen at room temperature is about 1.3 kg/m3. Therefore, its density in g/cm3 is   1300   0.0013   130   0.013   Half-n-half Clue   3. Water has the maximum density at   0oC   -4oC   4oC   40oC   Half-n-half Clue   4. Which of these has the highest density?   Mercury   Tungsten   Water   Lead   Half-n-half Clue   5. The density of water is about 100 kg/m3 at room temperature.   True   False   6. Which of the following statements is true?   Water floats on oil because water is less dense than oil.   Oil floats on water because oil is less dense than water.   Oil floats on water because oil is more dense than water.   Water floats on oil because water is more dense than oil.   Half-n-half Clue   7. An object floats in liquid L1, but it sinks to the bottom in liquid L2. Which statement of the following is true?   Liquids L1 and L2 have the same density.   Liquid L1 has a higher density than liquid L2.   Liquid L1 has a lower density than liquid L2.   No definite conclusion can be made about the liquid densities.   Half-n-half Clue