Hot Air UP!
WHY? question_guy
As air is warmed, the particles (molecules) it is made up of spread out. This makes the air lighter (less dense), and it rises. The rising warm air above the candle filled the bag and caused it to rise, also.
ASSESSMENT: Can the student communicate what they observed?

question_guy
two The student is able to communicate that the hair dryer warmed the air inside the tissue balloon making the air lighter. The lighter air rose and filled the balloon causing it to rise, also.

two The student is able to communicate that the warm air caused the bag to rise.

two The student is able to communicate that the candle made the bag rise.

two The student is able to communicate that the bag rose.


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Last modified: Tue Mar 24 18:51:50 PST 1998

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