Multiple choice

Which of the following is the hottest?

  1. The core of the Earth

  2. Lightning

  3. The surface of the sun

  4. Lava
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A bolt of lightning can reach temperatures of around 30,000 Kelvin (about 53,000 degrees Fahrenheit), which is about five times hotter than the surface of the sun and significantly hotter than the Earth's core (around 6,000 degrees Celsius) or lava.

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