Hydrometer questions

Conclusion / Questions

Answer the questions below.

1. Define the term salinity.

 Salinity is the amount of salt that is in the water

2. If you add salt to a water solution, will a hydrometer float higher or lower in the water? Explain your choice.

 The hydrometer lowers because the salt water is more dense now that there is more salt in it.

3. What effect does the addition of salt have on the properties of water?

 It makes the salinity levels higher

4. Is it easier to float in the ocean than in a swimming pool? Explain why or why not.

 a pool because the water is the ocean has more salinity in it than water in a pool.

5. Define the term density.

 a ratio of the amount of mass per unit volume.

 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.

Because when its hot the molecules of the salt start to move more and then they begin to multiply.