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8th GRADE SCIENCE
CHAP 9 VOCABULARY QUIZ
Term | Definition |
---|---|
The ability to pick up materials including small pieces of iron | magnetism |
the ratio of the mass of a substance to the mass of an equal volume of water at 4 degrees Celcius | specific gravity |
characteristic of some minerals to separate into flat sheets | cleavage |
the quality and intensity of the light reflected from a mineral's surface | luster |
crystals enlarge by adding particles to their exposed surfaces | accretion |
atoms of several elements combined | compound |
substances not chemically combined which can be separated nonchemically | mixture |
contains only one kind of atom and is therefore a pure element | native mineral |
a naturally occurring, inorganic, crystalline solid with a definite chemical makeup | minerals |
determined by the number of protons | element |
color of a minerals powder | streak |
breaking patterns of a mineral | fracture |
the hardness ranges for minerals | Mohl's scale |
the bending of light as it passes through a mineral's crystals | refraction |
the test that usually results in the formation of bubbles of carbon dioxide, hydrogen sulfide, and sulfur dioxide | acid test |
the product of colors when minerals burn that help identify minerals | flame test |
glowing while bombarded by ultraviolet light | luminescense |
minerals that give off radiation | radioactivity |
emit light while absorbing radiation from another source | flourescense |
the ability of a mineral to withstand scratching and abrasions | hardness test |
a piece of unglazed procelain | streak plate |
got it's name from guiding ships at sea | lodestone |