1. Twirlybirds
Purpose-
To see what happens when the wing length of paper twirlybird is changed.
Time, seconds
Prediction
Drop 1
Drop 2
Drop 3
Average
7.4 cm
Wing Length, cm
___ cm
___ cm
___ cm
Cut and fold
Predict
Drop 3x, then average
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2. Time to Drop to the Floor, in seconds
Twirlybirds 10 8
Time to Drop to the Floor, in seconds 6 4 2 1 2 3 4 5
Trial
Bird 1-control
Bird 2-(change)

3. Twirlybirds Average Time to Drop to the Floor, in seconds Birds 10 8 64 2
#1-Control
#2- ______
#3- ______
Birds