Volcanoes

Did you know that about four or five volcanoes erupt somewhere on our planet every week? On any given day, one of the world's more than 1,000 geysers may shoot boiling water into the sky.
Hundreds of small earthquakes shake the Earth every day, and a major earthquake rattles it about once a month. All of this is the result of the turmoil hidden inside our planet!

6 to 9 years

14 pages