Astronomy charts

Both sheets here exist because the numbers are hard to feel. The solar system chart puts size, distance from the Sun, the length of a year and the length of a day on one page, so that Jupiter's ten-hour day stops being trivia and becomes a comparison you can make with your eye.

The Moon sheet takes the eight phases through one full cycle — 29.53 days, not the 28 that gets repeated everywhere — and shows how much of the disc is lit at each of them.

Both work on a child's wall, and neither is only for children. A3 suits them: the planets need the width, and the phases want to be read from the doorway.