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1. Topic-
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| Newton's Law At Work |
2. Content-
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Students will experiment with a balloon rocket to observe Newton's
Third Law of Motion and the
principle of rocket propulsion. |
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3. Goals: Aims/Outcomes-
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National Standards
Correlation:
Science (grades K-4)
- Unifying Concepts and Processes Standard: Evidence, models, and
explanation.
- Unifying Concepts and Processes Standard: Change, constancy, and
measurement.
- Physical Science Standard: Position and motion of objects.
- Science as Inquiry Standard: Abilities necessary to do scientific
inquiry.
- Science as Inquiry Standard: Understandings about scientific inquiry.
Math (grades K-2)
- Measurement Standard: Apply appropriate techniques, tools, and formulas
to determine
measurements.
- Data Analysis and Probability Standard: Develop and evaluate inferences
and predictions
that are based on data.
Math (grades 3-5)
- Measurement Standard: Apply appropriate techniques, tools, and formulas
to determine
measurements.
- Data Analysis and Probability Standard: Develop and evaluate inferences
and predictions
that are based on data. |
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4. Objectives-
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Students will:
- Construct a balloon rocket
- Observe Newton's Third Law of Motion
- Measure the duration of the flight
- Measure the distance of the flight
- Collect, organize and present data |
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5. Materials and Aids-
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- Balloons in various sizes
- Clothespins - pinch-type
- Straw
- Fishing line or heavy thread
- Duct tape
- Marker
- Stop watch
- Ruler |
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6. Procedures/Methods-
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A. Introduction-
A. Warm-up
1. Review Newton's Third Law of Motion. "For every action, there
is an equal but opposite
reaction."�
2. Blow up a balloon and release it. What happened? How can the balloon
be directed in a
straight line? |
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B. Development-
1. Give materials to each team and allow each student to blow up
a balloon. Students should
write their names on the balloons with a marker. Gently release the
air from the balloon.
2. For each balloon track, take a straw and push one end of the fishing
line or string through
the straw.
3. Stretch the fishing line or string across the room horizontally
(about waist high) and
secure it tightly. Very Important - The line must be as tight as possible
for the balloon to
fly properly.
4. Inflate balloons, one at a time. Twist the neck and use a pinch
clothespin to secure the
end.
5. Use two pieces of tape to secure the balloon to the straw on the
fishing line. Make certain
that the clothespin end is pointing towards the end of the track.
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C. Practice-
1. Gently move the balloon along the fishing line track to one end.
2. Release the clothespin and observe the results. |
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D. Independent Practice-
| Students may time the duration of the flight and/or measure the
distance. |
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G. Closure-
1. Repeat the activity using different size balloons. Record observations
and compare
results.
2. If the students recorded time and distance, create a graph or determine
the averages for
the team or class. |
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