Science Buddies: "Ask an Expert"

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Why do you think it is important to color the liquid?
In Procedure #4, why do you think the straw should not touch the bottom of your bottle?
Why does the fluid rise up and sink down with respond to temperature change?
Explain the relationship between the volume and radius of the straw as temperature changes.




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Leave this to help the Experts:
The activity can be viewed at: Measure Up with a Homemade Thermometer

Hi Thinkfree23,

I see that you have posted questions from the Instructions tab of the "Measure Up with a Homemade Thermometer" activity. Are you doing this as a science fair project? If so, please talk me through your observations so that I can lead you to the answers.

Best regards,
Dr. Payne