Question | Answer |
What is the core? | what is at the center of the Earth temperature and pressure are very high |
What is the mantle? | outside of the core is the mantle which makes up most of the Earth's mass |
What is the crust? | the outer most of Earth's layers it is about 25 miles thick. |
What is magma? | liquid rock that is within the Earth's surface |
What is Lara? | magma that has reached the Earth's surface |
What are Plate tectonics? | explain how forces within the Earth create land forms. |
What is Continental Drift? | the movement of Earth's plates across the mantle [usually at a rate of about one inch per year] |
What are Rift Valleys? | formed underwater when tectonic move apart from one another |
What are Abyssal Plains? | when oceans floors sink because there is no heat below them, there regions are smooth |
What are Continental Shelves? | the surfaced that extends under shallow oceans |
What are Folds? | areas of compressed rock that occurs when plates collide with each other |
What are Faults? | occurs when rock masses have moved apart and broken away from each other |
What is weathering? | the process by which rocks break and decay over time |
What is Sediment? | the smaller particles of rock, gravel, sand and mud that weathering breaks rocks into |
What is erosion? | the movement of surface material from one location to another, wind water and ice cause this to take place |
What are Glaciers? | thick masses of ice also erode rock and move sediment |
What are Plateaus? | an elevated flatland that rises sharply above nearby land on at least on side |
What are Alluvial fans? | sediment eroded from a mountain to the base of the mountain |
What is a Delta? | accumulated sediment at the opening of an ocean |