QOTDs – Friday, February 9 37. What is the purpose of scale models? Give an example of a specific situation in which a scale model would be useful.

Class Scale Model Activity If you were to create a scale model representing the different sizes of objects in our Solar System (the Sun & planets), which of the following objects would you use to represent what? Peppercorn 8 inch Ball Coffee Beans Chestnut or Pecan Pinheads Hazelnut or Acorn Coffeebean

Class Scale Model Activity Answers Sun – ball (diameter of 8 inches) Mercury – pinhead Venus – peppercorn Earth – peppercorn Mars – pinhead Jupiter – chestnut or pecan Saturn – hazelnut or acorn Uranus – coffeebean Neptune – coffeebean ‘Dwarf Planet’ Pluto – pinhead (or smaller)

Planets, the Sun, & other Stars Scale Models Planets, the Sun, & other Stars

Planets of our Solar System

The Sun vs. Planets

Our Sun vs. Other Stars

Other Stars vs. Bigger Stars

Scale Model Activity Objective: Develop a scale model representing the distances between objects in our Solar System. Materials: Planet Sketches, Colored Pencils, “Solar System Distances” Chart, Register Tape, Meter Stick, Glue or Tape Procedure: Color & cut out each planet. Use your chart and meter stick to help you mark the exact distances on your register tape (assume that the beginning of the tape represents the Sun). Glue or tape your planets at the appropriate distances on the register tape. Make sure that you names & class period is written on your register tape.