1. Define the term salinity. The term of salinity is mainly described as relating to salt or containing salt. 2. If you add salt to a water solution, will a hydrometer float higher or lower in the water? Explain your choice. the hydrometer will float higher because there are more dissolves particles in the water causing things to float. 3. What effect does the addition of salt have on the properties of water? The vapor pressure of the water will decrease causing the boiling point to be higher and the freezing point to be colder. 4. Is it easier to float in the ocean than in a swimming pool? Explain why or why not. because the amount of dissolved particles in the ocean. 5. Define the term density. Is a physical property of matter, as each element and compound has a unique density associated with it 6. The salinity of seawater is also affected by the temperature of a body of water. Explain how temperature causes differences in the salinity of water. The amount of salt will effect the temperature of water.