Physical Weathering
Name 3 types of physical weathering
abrasion, frost wedging, exfoliation, root wedging.
True or false: chemical weathering changes the composition of the rock.
True. Physical weathering only changes the size or shape of the rock.
What causes water to evaporate?
Radiant energy
Name the 3 types of rocks.
Igneous, Metamorphic, and Sedimentary.
What is thermal energy?
Name the 2 kinds of rocks that can be formed inside the Earth.
Metamorphic and Igneous.
True or False: convection currents are currents of water in the Earth's mantle and crust.
False: Convection currents are currents of thermal energy in hot liquid rock in the mantle.
What is igneous rock made out of?
cooled magma.
What kinds of land formations can occur from divergent plate boundaries?
Mid-ocean ridges, volcanos, new oceanic crust creation, rift valleys.
True or False: rocks can change from one form into a different form?
True: Take a look at the rock cycle.
True or false: Tectonic plates can cause the uplifting of rocks.
True: when plate converge (convergent boundaries), they force rocks up that were under the surface.
How do sedimentary rocks form?
When rocks build up on each other and put a lot of pressure on each other, until they squeeze together.
True or false: tectonic plates can cause burial.
True: when two plates converge (convergent boundaries), they can cause rocks down under the surface and expose them to the heat of the mantle or hotspots.