Page 25, paragraph #3 should begin:
But then suppose you have a cube that is three units tall, wide, and long. Then it has a surface of 54 square units and a volume of 27 cubic units. Now how do the square units of surface compare to the cubic units of volume? There are two square units of surface losing heat for every one cubic unit producing heat, right? (54/27 = 2/1) With a surface-to-volume ration of 2:1, it’s a little harder to keep warm.
Page 164 has a chart of the planets. Two numbers are wrong:
Uranus is correctly listed has having a diameter of 51,118 km. Dividing this by a billion gives .051 meters or 5.1 cm, and this is about 1/20 of a meter, not 1/2.
Neptune is also correctly listed with a diameter of 49,532 km, which is also about 1/20 of a meter, not 1/2.
At the bottom of this chart, the paragraph has a few typos and should read:
Members of the solar system are listed with their proper sizes in metric and English measure. Dividing these sizes by 1,000,000,000 (one billion) yields sizes that are within our visual experience and shows the relative sizes of the planets. On the next page, a similar chart shows the relative distances of members of the solar system. Find a map of a your own area, preferably one in which the scale of miles is 2.5 miles to the inch. From this, you can construct your own model of the solar system, using local landmarks.