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Teachers will need to ensue
that this activity is only done as a demonstration activity.
The lighting of the match
should be done by the teacher.
Print off the student's worksheet
and photocopy one for each student.
Ask the students to carry
out the activity from the worksheet then go over their results at the
end of the class.
Questions
and solutions
1. Why did the egg drop into
the bottle?
The greater air pressure on the outside pushed
the egg into the bottle, equalising the air pressure inside the bottle.
2. Why did blowing into the
bottle remove the egg?
Blowing
into the bottle increased the air pressure inside the bottle. This pushed
the egg out of the bottle, equalising the air pressure inside the bottle.
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