Screw Experiment

WALT ... explore how a screw works
... write up an experiment using the correct format
Today we explore screws by doing an investigation. This experiment demonstrates how a screw is really an incline plane.
Materials
Pencil, papers, colored felt tip marker, scissors.
Procedure
1. Cut a right triangle from the paper. The dimensions should be about 23 cm x 13 cm
2. Use the felt tip marker to colour the longest edge of the triangle.
3. Position the shortest edge (13 cm) of the triangle along the side of the pencil and wrap
the paper around the pencil by rolling the pencil. Be sure to do this evenly.
Results
Wrapping the paper around the pencil makes it look like a screw.