Types of Landforms
Describe the following landforms
Dune
Mountain
Sinkhole
Dune: mound or ridge of sand
Mountain: Large natural elevation
Sinkhole: Cavity in ground caused by erosion
The movement of weathered rock material from
one place to another by water, wind, ice, or gravity is called:
Erosion
A small crack in sidewalk appears. Rainwater fills the gap and then freezes during a snowstorm. After the water thaws, it evaporates, leaving the crack in the sidewalk even larger than before. What is the process called?
Physical Weathering
Climate: long/large amounts of data, over years and years and years
Weather: Short, currently happening, forecast
Define erosion.
Erosion: Earth materials are worn away and transported by natural forces such as wind or water
. A group of students gathered evidence from a government website.The evidence was photographic and dealt with the shape of the mouth of a river where it flowed into the ocean.
Which landforms were they studying?
Delta: triangular deposition of sediment at the mouth of a river
The breaking apart of rock by physical means is called...?
Physical Weathering
Jake and his classmates are learning about different types of mountains. He explains how volcanic activity, erosion, and plate tectonics contribute to the formation of mountains. Jake concludes that mountains are constantly being formed and eroded over time. Is he correct in his conclusion that mountains are constantly changing?
Yes, wind and rain are constantly eroding the mountains over years and years.
Which two spheres interact to create clouds and the water cycle?
Atmosphere and Hydrosphere
Define deposition:
Deposition: When rocks or particles of soil or silt are carried from one location and placed in another, usually by moving water or wind
What are three landforms that can be found in Florida
Sinkholes
Coastlines
Rivers
Lakes
Dunes
Deltas
Islands
The process by which rock minerals are changed by natural processes into new substances is known as
Chemical Weathering
***Stalactites and Stalagmites
Lily and her classmates are studying how rivers shape the land. She explains how erosion, sediment deposition, and the flow of water contribute to the creation of river valleys. Lily concludes that the path of a river is always changing due to these processes. Is she correct in her conclusion that the path of a river is always changing?
Yes, water and wind are always eroding the river and changing its shape slowly over time
If the sun's radiation is evenly heating the beach. Which will heat up faster the sand or the water?
The sand/land always heats up faster
The air above the land heats up and rises, the colder air above the water sweeps in and take the hot airs place creating a sea breeze
Define Chemical and Physical Weathering
Chemical Weathering: The process where rocks and minerals break down through chemical reactions, changing their composition by forming new minerals, primarily caused by interactions with water and dissolved
Physical Weathering: The process where rocks break down into smaller pieces without a change in their chemical composition
How did glaciers affect the shore lines?
Over long periods of time glaciers slowly melted and refroze
Eroded and deposited sediment over thousands of years
Smoothed the shore
Caverns and sinkholes are created by which process...?
Chemical Weathering
Florida is mainly built on limestone rock. What landform may be created as rain absorbs into the ground and erodes away at the limestone?
Sinkholes
As the day heats up on a beach the land heats up quicker, what happens to the air above the land? What happens to the air above the sea?
Sea: the air is cooler and more dense, its moves to take the place of the hot air rising, creating a breeze from the water to the land
Daniel used a large pan filled with sand to model the effects of wind on sand dunes. He blew air across the pan and observed how much sand was moved. Daniel then increased the speed of the wind and repeated the experiment. What would happen when the speed of the wind increased?
As the speed of the wind increased the amount of erosion increases as well
What is process is acid rain?
Chemical Weathering
Tom was examining a canyon with layers of different types of rock. He discovered a fossilized manatee tooth near the top, the fossil of a fern in the middle, and a plant fossil at the bottom. What process was essential in the formation and preservation of these fossils?
Deposition: layers and layers of sediment left over time creates shelves and can preserve objects like fossils.