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Science Rocks 7th

Science rocks

QuestionAnswer
Cooled magma/lava (magma/lava are same thing) (molten/melted rock, not wet, not DRIED) Igneous Rock
Igneous, Sedimentary, Metamorphic 3 Rock Types
Extreme heat and pressure applied to another type of rock deep inside the earth (think of tadpoles turning to frogs metamorphosis) Metamorphic Rock
Sediments pile up and/or layer and stick together (with minerals that act like natural cement) Sedimentary Rock
Solid, naturally occurring, combinations of minerals Rocks
Remains or evidence of once-living things. (These are often imprints. Sometimes minerals have replaced the bone/shell/plant.) Fossils
Bits of rock weathered from any other type of rock (sand, silt, clay, pebbles,gravel) If you can see for feel individual sediments then the rock is sedimentary. Sediments
Common in igneous rocks. Crystals are not all same shape. Fit together like puzzle pieces. Interlocking Crystals
Common in metamorphic rocks. Lines of flattened crystals Bands
Fossils do not form in these rocks because the heat would burn any living thing that got in the lava/magma. Bones would melt. Igneous Rock
Fossils do form - the once living thing or part of gets trapped in the layers, OR an imprint is made Sedimentary Rock
Fossils in this rock would get destroyed by the extreme heat and pressure deep in the earth Metamorphic
Smooth as glass, Crystals interlock like a puzzle if large enough to see Igneous Rock Characteristics
Can contain fossils, sometimes lighter than other rocks, sometimes more crumbly, sometimes see or feel sediments Sedimentary Rock Characteristics
May see bands of same or different colors, crystals may be hard to see Metamorphic Rock Characteristics
Created by: jmcmillen
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