1. Investigating the law of conservation of matter Vocabulary
The Law of Conservation of Matter – matter cannot be created nor destroyed, but may change form.

2. Investigating the law of conservation of matter Vocabulary
Precipitate– a solid formed by the reaction of two solutions.
Supernatant Liquid– liquid layer above the precipitate after it settles.
Decant– to pour off the liquid layer while retaining the solid.

3. Investigating the law of conservation of matter Vocabulary
Filter- to separate the parts of a mixture by mechanical means (as with filter paper).
Filtrate– liquid which has passed through the filter.

4. Investigating the law of conservation of matter Lab SKILL
How to Prepare a Filter
Make a cone out of a circle by FOLDING not by cutting the circle.
STEP 1

5. Investigating the law of conservation of matter Lab SKILL
How to Prepare a Filter
Make a cone out of a circle by FOLDING not by cutting the circle.
STEP 2

6. Investigating the law of conservation of matter Lab SKILL
How to Prepare a Filter
Make a cone out of a circle by FOLDING not by cutting the circle.
STEP 3
3 LAYERS
1 LAYER

7. Investigating the law of conservation of matter Lab SKILL
Setup for Heating & Filtering
Set small iron ring about 6” above the table and the large ring 3”-5” higher than your Bunsen burner.

8. Investigating the law of conservation of matter Lab SKILL
Setup for Heating & Filtering
Light burner out from under the ring stand, then slide it under the stand.
Do NOT adjust ring height with beaker sitting on the stand.

9. Investigating the law of conservation of matter Lab SKILL
Day Two – Finishing the Lab
Why did some groups have a clear filtrate and others, a yellow filtrate?
Stoichiometric Amounts – everything is in proper proportion, there are no leftovers.
3 Scenarios
A = B
A > B
A < B

10. Investigating the law of conservation of matter Lab SKILL
Day Two – Finishing the Lab
Mass both beakers
Clean up (Dispose of filter paper and compound C in the designated container, Compound D can be rinsed down the drain.)
Begin working on lab report