Tuesday, 1 May 2012

Today we will be seeing the thermite demonstration in period 3.  Before this, make sure you have printed off your notes on thermite from last week, and included the chemical reaction that occurs.
Once you've done that, answer these questions -
  1. How can you tell a chemical change has occurred? - http://www.ric.edu/faculty/ptiskus/chemical/
  2. Explain what kind of change happened to cook this egg, and how you would know if you'd been there when it happened -                                         
  3. What is the term for when something goes from a solid straight to a gas? How about in reverse? - http://employees.csbsju.edu/hjakubowski/classes/chem%20and%20society/elementsatomsmol/olatommolstruct.htm
  4. Watch this video.  What is the word for how thick a liquid is? - http://videosift.com/video/Non-Newtonian-Fluids-Explained-Lbs-of-Corn-Starch-Used
  5. What is the name of the new teacher who will be helping us for the next few weeks?
  6. Give one example of a physical change from this website, and one you think of yourself - http://www.edinformatics.com/math_science/p_change.htm
  7. Try this activity, what methods of heat transfer do you use to make the biscuits? - http://www.mochigames.com/game/making-anzac-biscuits/
  8. Watch this video in class if you can, otherwise do it for homework. Make sure you can explain to someone ALL the ways that you know this is a chemical change not a physical one.

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