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Science
Chapter 5 and 6
Question | Answer |
---|---|
Fauly | A long narrow crack in the earth's crust |
Plateau | A high land form with a flat top |
Folds | A bend in a layer of rock. Plates push into each other at the edge of continents. |
Mountain | A tall landform that rises to a peek |
Earthquake | A sudden shake of the rock that makes up the earth's crust. Natural disaster that is caused by earth itself. |
Seismic Waves | a vibration caused by an earthquake |
volcano | a mountain that goes up around an opening in the earths crust. Not related to weather |
weathering | The slow porcess that breaks rocks into smaller pieces |
chemical weathering | changes the minerals that make up rocks; can be caused by oxygen, acids, carbon dioxide |
physical weathering | changes the size or shape of rock; caused by weather, freezing, plant roots |
erosion | the removing of weathered rock |
deposition | the dropping of eroded soil bits of rock |
mineral | a natural, nonliving substance usually solid material that makes up rock, Examples diamonds, talc, quartz. |
Moh's hardness scale | scale from 1 (softess) to 10 (hardest). |
Talc | softest mineral |
Diamonds | hardest mineral |
color, luster (shine), streak, hardness | properties of minerals |
igneous rock | a rock forms when small bits of matter are pressed together in layers. |
sedimentary rock | a rock that forms from when small bits of matter are pressed togehter in layers. |
metamorphic rock | rock formed from another kind of rock under extreme heat and pressure |
obssidian and granite | igneous rock |
limestone and sandstone | sedimentary rock |
marble and gneiss | metamorphic rock |