Homework:
1. IF you have not yet filled in the blanks on your "Water Cycle" diagram on the back of your lab sheet, please be sure to do that.  

2. Analysis Questions 1-4 on pl. C-42. Answer in Science notebook.
Use the e-book or wait for me to copy the questions to this blog.

READ THIS HELPFUL INFO: See the diagram of how solutes dissolve in solvents, shown at the bottom of this post.  Notice how the particles of solid are fully dissolved only when they have a water molecule on every side.

Analysis Questions 
1. In this investigation, which substance (s) are solutes and which are solvents from among this list of materials that we used:

• sodium chloride
• copper chloride
• cornstarch
• iron chloride
• water

2. A substance that dissolves in water can be described as soluble in water.
     a. List the four solids in order from most to least soluble in water.
     b. Explain what evidence enabled you to order the substances by solubility.

3.  a. Must a mixture be clear to be a solution?  Explain.
     b. Must a mixture be colorless to be a solution?  Explain.

4. Imagine that all four of the tested solids are considered water pollutants.  Which would be easiest to remove from the water?  Explain your answer.