Oct. 7 – Work Period

Today in Period 1 we had an anti-bullying assembly.  Here is a powerful video on the topic of bullying and how it affects people.

Video: To This Day Project - Shane Koyczan

Here's a live version where you can see the author reciting it in person.

Video: To This Day - Live version

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Then in class I handed back the Physical and Chemical Changes Investigation.  Have a look at TeachAssist for your updated marks.

Here are some notes on your responses:

• Clarity is either transparent, translucent or opaque.

• Dissolving is spelt D-I-S-S-O-L-V-I-N-G.  Breaking of a substance without affecting the particles.
  Wrong: the magnesium dissolved.
  Correct observation: I can no longer see the magnesium.
• Evaporation is a phase change from liquid to gass.
  Wrong: the magnesium evaporated.
  Correct observation: I can no longer see the magnesium.
• Both dissolving and evaporation are physical changes.

• "Cannot reverse" is not an observation.
• You can ONLY use your 5 senses to make observations.
• Use these observations to support "How do you know".

The rest of the period was for working on the element project and for studying.

Here are some review questions to help you study:

• Ch. 5, P. 202 #1, 2, 7, 10, 11, 12, 16, 17, 18, 19
• Ch. 6, P. 248 #1, 2, 4, 5, 6, 7, 10, 11, 13, 14, 19
• Ch. 7, P. 280 #1, 2, 3, 5, 6, 7, 8, 9