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cooling curves

Discussion in 'Science' started by iron, Jun 23, 2011.

  1. iron

    iron New commenter

    Looking at states of matter and we are including energy changes assoc. with changes of state. (scottish CfE)
    Any one still do them?
    Any good ideas?

    Thoughts welcome

  2. marshypops

    marshypops New commenter

    Cooling curves can be great fun (I use chocolate).
  3. rachel_g41

    rachel_g41 Established commenter

    I love the idea of using chocolate! I struggle with stearic acid (I think) - we never quite get it quite hot enough that it doesn't start solidifying before they're ready to start taking readings.

    Will definitely try chocolate next year

  4. bogstandardcomp

    bogstandardcomp New commenter

    I use stearic acid at least a half boiling tube and in a big electric water bath, if the kids get it quickly it usuall works.
  5. rachel_g41

    rachel_g41 Established commenter

    We borrow the water bath from biology, but maybe bigger/fuller tubes would be better. And since once of my colleagues is allergic to chocolate and hates even the smell, it probably wouldn't be very comradely of me to try that one.
  6. marshypops

    marshypops New commenter

    A Science teacher that is allergic to chocolate? They are an abomination and should be sent henceforth to suffer elsewhere...[​IMG]

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