molten		a type of rock that is formed from igneous or sedimentary rocks by high temperatures
aerobic		pertaining to life
Mars		the study of how a planet's crust moves, folds and cracks
baseline		the red planet that we have been studying
microbiologist		a type of rick that forms from hot melted rock, that cools and becomes solid
meteorite		evidence that life was present
nutrients		tiny, microscopic life
biotic		inactive or asleep
energy		the traces or remains of a living organism
meteor		the wearing away of a planet's surface by natural forces
anaerobic		vitamins, minerals and other raw materials that living things need
ejecta		a rock from space that that has landed on Earth
dormant		liquid rock
microbes		a rock flying through space
erosion		crushed rock fragments thrown in all directions when a impact crater is formed
fossil		a sign of photsynethic life
analog		the planet that we live on
sedimentary		without oxygen
metamorphic		someone who studies life that can be seen only through a microscope
salinity		with oxygen
biosignature		real life models that scientists use
Earth		a starting measurement that a scientist uses for an experiment
tectonics		the ability to do work (pg. 86)
oxygen		a type of rock that forms by being compressed or cemented into solid layers
igneous		a type of extreme environment