WONDER #1438: How Does the Sun Make Energy?

Question 1 of 3

The Sun is made up mainly of which element?

1. carbon
2. iron
3. oxygen
4. hydrogen

Question 2 of 3

The reaction that occurs at the Sun’s core that releases huge amounts of energy is called what?

1. nuclear fusion
2. nuclear fission
3. photosynthesis
4. hydrogenation

Question 3 of 3

About how much of the Sun’s energy that reaches Earth is used to warm the land and water on Earth?

1. 1%
2. 20%
3. 40%
4. 60%

Check your answers online at https://www.wonderopolis.org/wonder/How-Does-the-Sun-Make-Energy.