WORKSHEET CHANGES TO QUESTIONS

On your Halloween ppm worksheet in questions where you have units of:

• g or mg change it to mL
• kg change it to L

Ooops, that was my proof-reading mistake. If you don't get it, not to worry we will clear it all up in class on Tuesday.

Grade 9 Science - What we did in class today HALLOWEEN

• go over the test
• in class assignment for marks - make corrections to your test and hand it in by the end of the period
• HOMEWORK - finish "new" ppm worksheet - don't forget to show all of your work when doing calculations
• HAPPY HALLOWEEN