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\f0\b\fs28 \cf0 Thinking About Mixing
\b0 \
What would happen if equal volumes of hot water were mixed with an equal volume of cold water? \
Use words, sketches and/or diagrams to describe what you think will happen.  Keep in mind what you've learned about the motion of molecules. \
\
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\f0\b\fs28 \cf0 Mixing Water Demonstration
\b0 \
Record the temperature of the hot water sample: \
Record the temperature of the cold water sample: \
\
Make a Prediction:\
Would the ending temperature be higher, lower, or the same as the starting hot/cold water samples? Give a reason to support your prediction. \
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\f0\fs28 \cf0 Plan a Mixing Experiment\
Focus question: When the hot water and cold water samples are mixed, what do you think the resulting temperature will be in comparison to the beginning temperatures? \
\
Design a simple experiment to test your ideas using the following materials: \
- 3 cups (insulated paper or foam)\
- graduated cylinders \
- 2 thermometers \
- hot and cold water \
\
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\b \cf0 Describe your plan.
\b0   What will you do to test your prediction?  How will you record your data? How many times will you run your experiment? \
\
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\f0\b\fs28 \cf0 Review data
\b0 \
What do you notice about the data? \
Is there a pattern between the starting and ending temperatures? \
Imagine that you could "see" the molecules in motion as the water mixing was occurring.  Draw/describe what you think you would see:\
\
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\f0\b\fs28 \cf0 An additional mixing challenge
\b0 \
Do you think that the same thing would happen if we used unequal volumes of water?  Design another experiment to test your ideas. What did you find out? }</string>
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