Sunday, December 6, 2009

Heating and Changing Matter




Read the article and answer the questions on the blog. Type your name below your answers.



1. Can you identify any of these changes?


2. How could these type of changes be useful to people?

7 comments:

  1. Some of the changes that I can identify are change in color, a physical change such as liquid to solid to gas, and a strong odor. Also smoke escaped from my test tube. For example, when baking a cake at first it is just liquid batter but when heat is added it changes phases into a solid and gives off a (nice) odor. This change can be useful to people who are studying the changes of states, obviously.
    -Mia

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  2. 1.odor, color change, and look
    2. These could be helpful to create different foods. If there is a bad odor then possible the food might be bad. If it is a wronge color it might be bad. If it looks to burnt it might be burnt.
    -Shannon Emrich
    p.s.
    Sorry if some spelling is incorrect.

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  3. when heated, many substances will become much easier to move around. people can use this change to mold stubstances onto another substance.also, when heated, many substances will change color, or liquify.
    tyler johnson

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  4. 1. Some examplaes of these changes are when an ice cube melts and when cake turns from a liquid to a solid.
    2. These changes can be useful to people who work with metal, which goes from a solid to a liquid when heated to make it easier to form

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  5. some substances don't change when they get heat under them, which can be helpful to people because we could use them in the heat and not have to worry about any phase changes

    -connor pyne..tree

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  6. 1) The changes shown are solid to liquid, liquid gas, and liquid to solid.

    2) These changes can be useful to people because with knowledge of phase changes anyone can use this to develop and make new things such as a chef creating a cake. By using heat to their advantage, chefs make the cake change from a liquid to a solid.

    --Alex Smith

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  7. These changes could be usefull to people because if there are three substances that look alike someone could tell them apart by applying heat to them.


    -JT Ricci

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