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(5th) Science Ch. 9
(5th) Science Ch. 9 V2 - Changes To Earth's Surfaces
Term | Definition |
---|---|
Mountain | Landform that is much higher than the surrounding land |
Ranges | Mountains that occur in groups |
Hills | Landforms that are like mountains but not as high Most have rounded slopes |
Plain | Large, flat landform with little relief |
Moraines | Long, low hills formed by materials carried by a glacier Contains rocks, sand, and clay |
Glacial Grooves | Feature formed when a glacier scrapes and scratches the rock beneath it |
Sand pits & Barrier islands | Long narrow piles of sand that help protect the mainland from wave erosion |
Sandbar | Sand landform made by rivers |
Mesa | Tall, flat topped rock feature that forms as water erodes the surrounding rock |
Canyons | Deep valleys with steep sides formed by rushing water that carved through many layers of rock |
Mouth | Part of a river where it empties into the ocean |
Landside | Erosion made by soil, mud, and rocks moving quickly down a slope |
Cover Crops | Help to return nutrients to the soil and help prevent erosion |
Crust | Surface layer of the Earth |
Mantle | 2 Parts (Upper & Lower) Made up of solid rock but can flow |
Outer Core | Hot liquid iron |
Inner Core | Made up of Iron & Nickel Very hot but the great pressure at the center of the Earth keeps it solid |
Focus | Place within the crust where energy is released during an earthquake |
Magnitude | Amount of energy released an earthquake releases |
Richter Scale | A scale of magnitude for an earthquake |
Molten | Melted |
Vent | Opening |
Hot Spot | An Especially hot column of magma |