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Science WED/Rocks
Niewoehner Weathering, Erosion, Deposition, Rocks, Fossils
| Question | Answer |
|---|---|
| weathering | process of breaking down and changing rocks |
| erosion | process of moving broken down rocks and soil |
| deposition | process of dropping rocks and soil in different places |
| igneous | rock formed from cooled molten rock |
| sedimentary | rock formed from layers of sediments compressing together |
| metamorphic | rock that has completely changed into another rock |
| mantle | layer of the earth that melts and hardens to form igneous rock |
| fossil | preserved remains of a once living organism |
| trace fossil | foot or leaf prints form this |
| fossil in amber | an animal or organism gets trapped in tree sap to form this |
| physical weathering | changes the size and shape of rocks |
| chemical weathering | changes the substance that makes up rocks |
| moving water and strong winds | cause erosion |
| dunes | result from wind erosion on beaches |
| acid rain and pollution | causes of chemical weathering |
| water, plants, temperature | causes of physical weathering |
| heat | needed to make igneous rock |
| pressure | needed to make sedimentary rock |
| heat and pressure | needed to make metamorphic rock |
| lava | another name for melted mantle |
| oldest fossils | found in the bottom layers of sedimentary rock |