Lava, e.g. is a term used to describe molten rock that has been expelled from the Earth's surface due to volcanic activity. The crossword solutions for this term are SOAP (4 letters), EJECTA (6 letters), and HANDSOAP (8 letters). SOAP is a type of molten rock that is formed when lava cools quickly, while EJECTA is material that is ejected from a volcano during an eruption. HANDSOAP is a type of SOAP made from lava ash, which is created when lava is heated to high temperatures.