Notes

32 p. : col. ill., maps Table of contents: What is a volcano? -- What causes volcanoes? -- Case studies : Hawaiian Islands -- Where do volcanoes happen? -- What happens when a volcano erupts? -- Case study : Colombia, South America, 1985 -- Who helps after a volcano? -- Case study : Mount St. Helens, 1980 -- Can volcanoes be predicted? -- Can people prepare for volcanoes? -- Violent volcanoes of the past Awesome forces of nature Heinemann infosearch