#3 - Because helium is lighter then air it causes the balloon that is filled with it to rise through the air. ... #5 - Dwell on the scientific truth/fact that the helium balloon rises because it purely lighter then the air.
#6 - Once the helium escapes the balloon, the balloon becomes heavier then the air and the air cannot support it so it falls thru the air until it rests upon the ground (excluding trees buildings etc).
Gravity does not exist in this factual science truth.
Gravity does not exist in this factual science truth.
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