click below
click below
Normal Size Small Size show me how
Science Review
Rock Cycle, Weathering, and Erosion
Term | Definition |
---|---|
crust | The thin and solid outermost layer of the Earth above the mantle |
mantle | the layer of the earth between the crust and the core |
outer core | molten, liquid metal is in this layer |
inner core | Solid Iron and Nickel make up this layer |
crust | thinnest under oceans and thickest under mountains |
mantle | thickest layer of the earth |
outer core | source of the Earth's magnetic field is Iron from this core |
inner core | Hottest layer of Earth. |
crust | least dense and thinnest layer |
mantle | contains some liquid (molten) rock, but mostly solid |
mantle | makes up about 2/3 of the Earth's mass |
weathering | the process by which rock is broken down into smaller pieces |
deposition | the dropping of weathered rock by wind or moving water |
sediment | very small pieces of rock;examples include sand and silt |
wind and moving water | this carries sediment from place to place |
erosion | removal of soil and rock from the Earth's surface |
Grand Canyon | formed by the moving water of the Colorado River |
convergent | when two plates collide or travel toward each other |
divergent | when two plates move away from each other |
transform | when two plates slide past each other |
convergent | this type of boundary forms volcanoes and mountains |
divergent | this type of boundary forms ridges and rift valleys |
transform | this type of boundary causes earthquakes |
cooled magma | Igneous rock comes from _______________. |
layers | Sedimentary rock forms in ___________. |
streaks | Metamorphic rock has ____________ or bands of colors running through it. |
fire | What does ignite (igneous) mean? |
fossil | A sedimentary rock might have a __________ in it. |
metamorphic | What type of rock is marble? |
igneous | What type of rock is granite and basalt? |
pressure | Metamorphic rock undergoes heat and _______________. |
water | What causes most erosion on earth? |
wind | Besides water, what is the next biggest cause of erosion on earth? |
weathering | What is the "breaking down" of rock called? |
erosion | What is the "carrying away" of rock called? |
sedimentary | Which rock type is formed in layers at the bottom of ocean? |
deposition | The process after weathering and erosion when sediment comes to rest in a certain place |