Volcanoes are mountains that eject molten lava, rock, and steam when erupting. During eruptions, static electricity can build up from ash particles causing volcanic lightning. Eruptions occur when powerful underground forces push hot gases and magma out through holes in the Earth's surface, shooting lava, rocks, and ash into the air. Living near an active volcano requires keeping safety gear like goggles and masks for ash emergencies.

1. ERUPTING VOLCANOES BY TREVOR