Students do an experiment to show static charge. They set a piece of clear plastic on blocks above a desk. They put some dry rice cereal under the plastic. The students rub the plastic with a wool cloth to cause a static charge. This makes the
cereal jump, as it is attracted to the plastic.
Pane of clear plastic
Wooden block
Cereal
Desk
The students try other materials. They rub each material against the plastic to see if it creates a static charge that makes the cereal jump.
Which material will most likely produce the same result as the wool cloth?
O A a brass key
O B. a wood block
C. an iron magnet
OD. a piece of nylon
Malmouna Sultan Saqer Mohammed Al
Growth: Science 6-8: for use with Question
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