WONDER #2941: Where Did Earth's Water Come From

Question 1 of 3

This Wonder is mostly about . . .

1. The origins of Earth’s water.
2. How the solar system was formed.
3. The age of the universe.
4. How much of the Earth is covered by water.

Question 2 of 3

What is another way to say “water”?

1. Dihydrogen oxide
2. H2O
3. Carbon monoxide
4. A and B

Question 3 of 3

What caused oxygen and other elements to be spread across the universe?

1. A cosmic “sneeze.”
2. Stars dying and then exploding.
3. Incredible heat inside the stars.
4. The orbit of planets around the sun.

Check your answers online at https://www.wonderopolis.org/wonder/Where-Did-Earth’s-Water-Come-From.