old tests

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what physical property of an element is determined by dividing the elements mass by it's volume?

what are the two types of igneous rock?

what are the two types of metamorphic rock?

what term refers to the decaying organic matter found on the surface of the ground?

what are three types of magma determined by there density

what are the 3 subatomic particles and what is their electric charge?

what two elements comprise 99% of earths atmosphere?

what are the two types of sedimentary rocks?