Quiz

The Sun: the basics

Five questions on what the Sun is and how it works. Written to match the episodes, not to trick you.

5 questions · pass mark 70%

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1 What is the Sun mostly made of? Hydrogen and helium Molten rock and iron Burning carbon Liquid plasma water

2 The Sun produces energy by which process? Combustion, like a fire Nuclear fission, splitting heavy atoms Nuclear fusion, joining light atoms Friction from its rotation

3 Roughly how long does light take to travel from the Sun's surface to Earth? 8 seconds 8 minutes 8 hours 8 days

4 Why do sunspots look dark? They are holes in the surface They are cooler than the surface around them They are shadows cast by planets They are clouds of dust

5 What does the Sun's corona become visible during? A lunar eclipse A total solar eclipse Sunrise A solar flare