Name :
WENTY
Unit Test:
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Subject
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7 Describe an
activity to prepare a ballon rocket?
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Answer:
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Explanation:
Experimental Procedure
Tie one end of a string to a chair, doorknob, or other support. Put the other end of the string through a straw. Then pull the string tight, and tie it to another support in the room. Blow up the balloon, and pinch the end of the balloon to keep the air inside.
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