WHY? question_guy
This is Bernoulli's Principle: Faster moving air exerts a lower pressure than air that is not moving. The faster moving air decreases the air pressure under the paper. The air pressure above the paper is greater, causing the paper to sink.
ASSESSMENT: Can the student communicate what they observed?

question_guy
two The student is able to communicate that the faster moving air caused a decrease in pressure under the paper. The greater pressure above the paper makes it sink.

two The student is able to communicate that faster moving air changes pressure.

two The student is able to communicate that blowing under the paper made it sink.

two The student is able to communicate that the paper sinks.


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