1. IPS Lab Final: Sludge
Instructions

2. Purpose
You are being given a mixture of liquid(s) and solid(s), using only substances we have used and/or discussed this year. Your job is to:
1) separate the components of the mixture
2) test the substance(s) and list as many characteristic properties as you can
It is NOT necessary to NAME the substances, although you may guess if you like.

3. Procedure 5 points: Prep
Make a list of GENERAL procedures that you will do, in approximate order, along with the question/purpose for each procedure.

4. What could you do?
You can ONLY follow procedures/tests that we have done this year, and in the safe manner that we completed them.
Following directions, neatness, SAFETY, cooperation – 10 pts

5. Running Record of Observations & Data (50 points)
Question/Purpose
Test
Results
Conclusions/New Questions
What can I tell just by observing?
Observe
describe what see, smell, etc.
Undissolved solid.
Liquid. Is the liquid a mixture or a pure substance? Is there a dissolved solid?
Separate the undissolved solid
Filter
Solid left on filter paper
Is the filtered solid a pure substance? Liquid filtrate is clear; is it a mixture?
Is the filtered solid a pure substance?
Try dissolving a small amount in a different solvent (isop, acid)
Is there a dissolved solid in the liquid?

6. Did you separate ALL substances? (10/5/2pts)
All liquid(s) and solid(s) – 10 pts
Most liquid(s) and solid(s) – 5 pts
Some liquid(s) and solid(s) – 2 pts

7. Conclusion/List of Substances (25)
Our Sludge #____ contains ___liquid(s) and ___ solid(s). From our testing, this is the information we have collected about the components:
Solid 1 Liquid 1
Color Color
Odor Clear?
Solubility in diff solvents What solids dissolve/don’t dissolve in it
Consistency (powder, metallic) Boiling Point
Etc. Odor
Flammability
Etc.
Solid 2, etc. Liquid 2, etc.

8. Grading Rubric (this is worth 1/2 of the IPS final)
Names: ________________________________________
Block: _____
IPS Lab Final Grading Form
Plan Completed: 5
Running Record of Observations: 50
Includes: purpose/question, test
performed, results (data tables,
graphs, observations, measurements,
calculations, etc.), conclusions/new
questions raised.
Separation of Substances
All
Most 5
Some 2
List all you have learned about 25
each of substances separated
(characteristic properties)
and possible identification
Following directions, neatness, SAFETY 10
Cooperation