MATERIALS NEEDED:
- one aluminum cigar tube
- one nail
- one hammer
- two pipe cleaners
- glue
- water
- three candle stubs
- aluminum food tray
- paper and pencils
STEPS TO FOLLOW:
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Discuss the information with the students under Science Concept and
Teacher Text with the students. Make sure that the class understands
Newton's Third Law of Motion.
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Talk about safety when doing an experiment with the class.
Suggestion: Do this experiment with the students.
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The procedure for this experiment: Obtain a hollow aluminum tube
with a screw lid (a cigar tube is ideal). Using a nail and hammer, punch
a hole in the screw top. Twist a pipe cleaner around each end of the
tube and glue. Half-fill the tube with water and replace the lid. Lay
the tube lengthwise across the aluminum food tray and balance using the
pipe cleaners that are around the two ends of the tube. Place the three
candle stubs under the tube in the aluminum tray. Place the tray in a
tub of water and then light the candles. After a few minutes, the boat
will be thrust forward by a jet of exhaust stream.
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Caution: After the candle stubs have been lit, never touch the hot
metal tube or place your hand in the jet of steam.
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After the experiment discuss with the class what has happened and how
Newton's Third Law of Motion is in operation during this experiment.
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Ask the class to write a short paper about the experiment.
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