Purpose: To observe a physical change
Materials:
•Lined notebook paper (not loose leaf-it can’t have holes in it)
•Scissors
Procedure:
1) Fold the paper in half lengthwise, perpendicular to the lines as shown in
picture 1 below.
2) Look at picture 2 and find the points labeled A and B on your paper. Cut
across the folds at points A and B as shown. Be sure to stop cutting
about a quarter of an inch away from the open edge!
3) Alternating between the open edge and the folded edge, cut along every
other printed line on the paper. Make sure to stop cutting a quarter inch
from the edge each time.
4) Make your final cut as in picture 3, cutting along the folded edge, but
leaving the folds uncut at points A and B as shown.
5) Carefully stretch the paper open.
What’s going on?
You’ve simply changed the shape of the paper in a clever way. It’s still paper,
though, isn’t it?
Think and talk about this!
Physical changes don’t produce a new substance. Chemical changes do. How
could you chemically change the paper?
1.
2.
3.
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