Solar System Ruler - 30cm

Product Description: The Solar System Ruler is plastic and measures 30cm long. It shows measurements in both inches and centimetres. On the inches scale it includes units of 1/16 of an inch and on the centimetre side units of 1 millimetre.

The front of the ruler shows an image of the solar system planets. The ruler runs from left to right with the following planets depicted in scale size, The Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

On the reverse is information about each planet. There are the main details provided for each planet including diameter, mass and volume as well as other interesting facts such a temperatures, distance from the Sun, time to orbit the sun and number of moons.