1. NCIS? NOPE! How about GHIS?

2. There’s been an incident…

3. Involving this student
And this powder

4. Check out what might have happened….
News clip - Street Drugs
Drug cutting agents

7. Your job as a member of GHIS will be to solve this mystery:
Which powder did the student use and was it pure cocaine or a mixture?

8. You are already experts. That’s why we picked YOU for the job!
With your partner, make a list of properties of matter that you could test to figure out whether the powders are a mixture or pure substance.
Do this on a white board and be prepared to share out.

9. Class list of ideas