This year we’re beginning each month with five pub quiz style questions, with a different subject each month. They’re not difficult, but it is unlikely everyone will know all the answers, so hopefully you’ll learn something new, as well as have a bit of fun.

April Quiz Questions: Physical Science

1. How much water is there on Earth per human being?
2. What was the name of the first, Russian, man-made satellite?
3. How many internal reflections of light take place in the formation of a primary rainbow?
4. Roughly how long does it take for the sun’s light to reach Earth?
5. Which Russian chemist published the first widely recognised Periodic Table?

Answers will be posted in 3 weeks time.