Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Definition rocks a naturally occurring solid substance made of one or
Document related concepts
Transcript
Name ____________________ ROCKS VOCABULARY Word Definition rocks a naturally occurring solid substance made of one or more minerals minerals naturally occurring, crystalline, non-living solid material with specific properties geologist scientists who study changes on and under the earth’s surface translucent transparent opaque fluorite Page 1 of 3 transmitting light partially; semitransparent (image is blurry) the ability to transmit light clearly so that an object can be seen through it a material that is not able to transmit light (you cannot see through it) a mineral that can form octahedral crystals What do you think of or picture? ROCKS VOCABULARY PROPERTIES Word Definition properties the characteristics of an element, such as the physical qualities (color, hardness, crystal shape) luster the shininess of a mineral Mohs Hardness Scale • rates hardness • talc (1) to diamond (10) • objects with higher rating can scratch objects with lower ratings streak color The color shown by rubbing one mineral against another light refraction change in direction of light : seeing one image or two through an object crystalline structure the regular pattern of atoms, molecules, or ions in a crystal transparency How much light can be seen through an object Page 2 of 3 What do you think of or picture? ROCKS VOCABULARY ROCK CYCLE Word Definition rock cycle ongoing processes that form and break down rocks geologic time Periods of thousands, millions, and billions of years igneous rocks formed from the cooling of magma (molten or melted rock below the earth’s surface) metamorphic rocks formed by changing pressure or heat sedimentary rocks formed from sediments that have been cemented together sediment small bits of decomposed earth materials, such as rocks, minerals, and shells fossils the remains or impression of a prehistoric organism preserved in rock erosion The earth’s process by which earth materials are removed from one place and transported elsewhere; the wearing away Page 3 of 3 What do you think of or picture?
