Build Your Own Clinometer

Instructions:

1. Download, print, and cut out this virtual protractor.
2. Strengthen your protractor by gluing it to a piece of cardboard (cereal boxes work well), then cut the cardboard in the shape of the protractor.
3. Poke a small hole in your protractor in the middle of the flat edge, where indicated. Attach a piece of string about 8″ long.
4. Attach a small weight to the other end of the string, like a small washer or screw.
5. Tape a regular drink straw to the flat edge of your protractor.

Good luck!