Follow-Up Analysis Questions:

 

Group Discussion Questions (These questions (1-6) are meant to be discussed by lab group members at the conclusion of the experiment.  Written responses are not required for these specific questions)

 

1.  How accurate were your predictions?  Describe the evidence you used to determine whether or not your predictions were accurate.

 

2.  Which cup(s) have some undissolved solid left at the bottom?  Why do you think this solid did not dissolve?

 

3.  Which cup(s) have the lowest concentration of dissolved solid?

 

4.  Which cup(s) have the highest concentration of dissolved solid?

 

5.  Do any cups have the same concentration of dissolved solid?  What is your evidence?

 

6.  If you were given a sample of water that contained a dissolved solid, could you accurately estimate the concentration just by looking at it?  Explain why or why not?

 

 

Questions 7-9 are for each individual student to consider.  Please type a well-organized, thoughtful and complete response for each.  Remember, to score a 4, you need to go above and beyond in some meaningful way.

 

7.  The term for any substance that is dissolved is solute.  Write this term and its definition in your Science notebook and enter it into the index.  The term for any substance that has another substance dissolved in it is solvent.  Put the definition for a solvent in your Science notebook and enter it into your index.  In this investigation, which substances are solutes and which are solvents?

 

 

8.  The liquid part of a pepper and water mixture, a sodium chloride and water mixture, and a Dominade and water mixture is called a solution.  The liquid part of the malachite and water mixture is not a solution.  Based on your observations, how would you determine whether or not the liquid part of a mixture is a solution?

 

 

9.If you were given a small sample of a substance, could you accurately estimate how well it can dissolve just by looking at it?  Explain why or why not.

 

Turn your individual responses in on Schoology.  Include a proper heading and title.