This document discusses measurements in our solar system and proposes representing it to scale in a classroom. It provides tables with the distances of planets from the sun in km and centimeters, and the diameters of planets in km. It suggests representing planets with different objects based on their size. It also introduces astronomical units and light years as alternative units of measurement for large distances, stating 1 AU is equal to 150 billion meters and 1 light year is equal to 64,000 astronomical units.

1. The scale of our solar system
1. In the following table the distances of the
planets from the Sun are given:
Planet
Distance from the
Sun (km)
in
centimeters
Mercury 58,000,000
Venus 110,000,000
Earth 150,000,000
Mars 230,000,000
Jupiter 780,000,000
Saturn 1,430,000,000
Uranus 2,900,000,000
Neptune4,500,000,000
Is there a way we can represent our Solar System
model in our class?
Based on these modifications, complete the above
table.

2. 2. In the following table the diameters of the
planets’ mass are given:
Planet Diameter(km)
Mercury 4,900
Venus 12,000
Earth 13,000
Mars 6,800
Jupiter 140,000
Saturn 120,000
Uranus 51,000
Neptune 50,000
Imagine that Mercury can be represented with a
grain of lentil, Mars with the grain of a bean e.t.c.
Fill in the gaps
2.1 If you give that in order to represent the
diameters of the planets
, 1,000 kilometers correspond to 2 centimeters,
then the scale is………………………………………..
3. Changes to units of astronomy

3. For the measurements of very large distances in
astronomy measurements like meters, kilometers,
etc. are not used.
The Astronomical Unit (A.U.) is a distance
measuring unit, equal to 150 billion meters.
The light year is a measuring unit of distance, not
time: 1 light year = 64,000a.m.
-How many kilometers is 1 A.U.?
-How many kilometers is 1 light year?