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5 Science Chapter 4

aluminum a lightweight, non magnetic, silvery-colored metal that is rustproof and can be formed into almost any shape
bedrock a solid, unmovable layers of rock below the subsoil; part of the earth's crust
coal a black or brown rock-like substance found in layers of rock; a fossil fuel
concrete a very durable artificial rock
copper a reddish-orange metal; the best low-cost electrical conductor available
crystal a solid form of a substance having a definite shape, flat surfaces, and sharp edges
diamond the hardest substances; crystals of carbon forming a brilliant, transparent gemstone
fossil the preserved remains of a plant of animal
gemstone a rare, beautiful mineral which is very hard
geode a rock-like object that was formed in a hole of a limestone deposit; it looks like a mudball and has crystals inside
geologist a scientist who studies the structure of the earth
geyser underground spring that shoots streams of boiling water and steam up into the air from time to time
gold a soft, bright yellow, precious metal that is used in the manufacture of coins, jewelry & alloys
granite a light-colored igneous rock which forms when liquid rock cools slowly, deep underground; forms most of the earth's crust
graphite a soft, black mineral used instead of lead in pencils and used as a dry lubricant in machinery
humus decaying plant and animal material
iron the most useful metal
lava magma that has erupted through the earth's surface
limestone sedimentary rock formed from the shells of sea creatures
magma hot, liquid rock within the earth; molten rock
marble metamorphic rock which was once limestone
mercury the only metal which is liquid at room temperature; commonly called quicksilver
mica a mineral which can be easily separated into thin sheets; the black mineral found in granite
mineral a substance that forms a special kind of solid called a crystal
mineralogist a scientist who studies minerals
mold fossils fossils that form when mud buries a plant or animal & quickly hardens around it
natural resource any material found in God's creation which is helpful to man
obsidian a glassy, black volcanic rock
Old Faithful famous geyser in Yellowstone National Park
paleontologist a scientist who studies fossils
petrified fossils the remains of a plant of animal that has turned into stone
petroleum an unrefined or unprocessed oil (in its natural state); crude oil
physical weathering the breaking of rock by physical forces such as extreme temperature changes, germinating seeds, running water or wind
pumice a light, volcanic rock that is full of air holes. It can also float.
quartz a common mineral, often in the form of a crystal, that gets its color from impurities found in it; the clear mineral found in granite
ruby the rarest gemstone; a clear deep red gemstone
sandstone sedimentary rock made mostly of sand
shale sedimentary rock formed from mud or clay; smells like mud when wet
silver a shiny metal; the best conductor of electricity
slate metamorphic rock which may begin as shale; was used to make chalkboards
soil loose earth containing humus and tiny pieces of weathered rock
spelunker someone who explores caves
stalactite a stone formation hanging from the roof of a cave; formed by the evaporation of dripping water filled with minerals
stalagmite a stone formation growing up from the floor of a cave; formed by the evaporation of dripping water filled with minerals
uranium a silvery-white radioactive metal that is the primary source of nuclear power
weathering the forming of soil from rock; there are two kinds of weathering physical and chemical
Created by: Mrs_CC