2. definitions in Discussion
LEARNING TARGET: I can conduct tests to identify properties of different solids.
Sept 19 / Act A7 Identifying Solids
CH Q
What are the solids in the mixture?
VOCAB:
conductivity, density, evidence, reactivity
definitions in Discussion

3. DISCUSSION
Based on prior knowledge, explain Conductivity, (Relative) Density and Reactivity.
Working Definition: It must work under any circumstance.
Define:
conductivity =
density =
reactivity =
allows electricity to flow
how much “stuff” in a certain “space”
chemical interaction happens

4. This demonstrates ______________________.
Prediction:
“IF I place the solids in a cup of water, THEN they will sink (or float).”
This demonstrates ______________________.
density (compared to water)
Or relative density

5. PROCEDURE AND DATA
MATERIALS:
PROCEDURE: Read on pg. A-28-29, and summarize
DATA: WS 7.1 Properties of Separated Solids
WS update
Use the table in pg A-31 to identify solids.

6. SLIDE metal into vial to avoid splashing

7. SLIDE metal into vial to avoid splashing

8. ANALYZE RESULTS BELOW TO IDENTIFY THE FOUR SOLIDS

9. red = black = tall metal = short metal = ANALYSIS
Discuss and answer Q 1 & 4 on pg. A-30
ANS CHALLENGE Q
What are the solids in the mixture? A:
red =
black =
tall metal =
short metal =
HDPE plastic
not enough info
HOMEWORK
Analysis Q 5 on pg. A In Journal