Earth's Spheres
What is the Earth system?
Earth's system- all of the matter, energy, and processes within Earth's boundary.
What is weathering?
weathering- the breakdown of rock material by physical and chemical processes
How does flowing water change Earth's surface?
it changes by erosion or deposition.
How can wind shape Earth?
They shape Earth by making
- abraded rock
-desert pavement
- dunes
- loess
What is a rock?
A rock is a naturally occuring solid mixture of one or more minerals that may also include organic matter.
What is the geosphere?
The solid, rocky part of Earth
What causes physical weathering?
temperature changes, pressure change, plant and animal actions, water, wind, and gravity
What factors related to a stream's ability to erode material?
The factors that control what sediments a stream can carry are gradient, load, and discharge.
What kinds of Ice shape Earth?
- Flowing ice
- Alpine Glaciers
- Continental Glaciers
What process change rock?
Weathering, Erosion, Deposition, Temperature, and Pressure.
What is the hydrosphere?
hydrosphere- the part of Earth that is liquid water
What causes chemical weathering?
Oxygen, Acid rain, groundwater, and living things.
They can create canyons and valleys by erosion, floodplains by deposition, and Deltas and Alluvial Fans by Deposition.
How can gravity shape Earth?
Gravity shape Earth by
- slow mass movement
- rapid mass movement
What are the classes of rocks?
- Igneous Rock
- Sedimentary Rock
- Metamorphic Rock
What is the cryosphere?
Cryosphere- made up of all the frozen water on Earth.
True or False: Rocks can change shape and composition over time.
True
What landforms are made by groundwater erosion?
stalactites, stalagmites and sinkholes
How do you think wind can erode materials?
They attack the material to make it move and bend the material.
What is the rock cycle?
The rock cycle is the series of processes in which rock changes from one type to another.
What is the biosphere?
biosphere- made up of living things and the areas of Earth where they are found.
True or false: Rocks cannot be weathered by wind and chemicals in the air.
False
What forces shape a shoreline?
- waves
- currents
What is a creep?
a creep is the extremely slow movement of material downslope.
How do tectonic plate motions affect the rock cycle?
By moving up and down and by pulling apart Earth's surface.