This activity was developed by the staff of the MMSD Planetarium and Observatory. All are welcome to download, print, and copy this activity. Please also feel free to pass this activity on to other teachers, but only in its entirety. Permission for re-distribution can be obtained by contacting our office.


About the activity

The Planetary Waistlines activity was designed to have students explore the relative sizes of the planets. The activity doesn't attempt to address the vast amount of space that exists between the planets. Planetary Waistlines provides three different versions that allow the use of proportions, fractions, metric system measurements, drafting compasses, and other features. This allows the activities difficulty to be adjusted to match your educational goals.

Obtaining a copy of this activity

Planetary Waistlines PDF (Version 1.0, 100K, 11/6/03)

NOTE: If you are unable to download and print the activity, please call our office, and we will either help you download it, or send you a copy.