lava – n. melted rock from a volcano

remind(ed) – v. to make someone think about something again

eruption(s) – n. a sudden explosion of rocks, lava, ash and gas

geologist(s) – n. a scientist who studies rocks and layers of soil in order to learn about the history of the Earth and its life

magma – n. hot liquid rock below the surface of the Earth

molten – adj. melted by heat

groundwater – n. water that is underground

data – n. facts or information used usually to calculate, analyze, or plan something