<P> Lava is the molten rock expelled by a volcano during an eruption . The resulting rock after solidification and cooling is also called lava . The molten rock is formed in the interior of some planets , including Earth , and some of their satellites . The source of the heat that melts the rock within the earth is geothermal energy . When first erupted from a volcanic vent , lava is a liquid usually at temperatures from 700 to 1,200 ° C ( 1,292 to 2,192 ° F ) . </P>
<P> Lava is the molten rock expelled by a volcano during an eruption . The resulting rock after solidification and cooling is also called lava . The molten rock is formed in the interior of some planets , including Earth , and some of their satellites . The source of the heat that melts the rock within the earth is geothermal energy . When first erupted from a volcanic vent , lava is a liquid usually at temperatures from 700 to 1,200 ° C ( 1,292 to 2,192 ° F ) . </P>
what do you call rocks that form when flowing lava solidifies
what do you call rocks that form when flowing lava solidifies
lava
lava