Comparing Rocky Planets
Spheres of Earth
Landforms and Geologic Processes
Weathering, Erosion, & Deposition
Name that landform
100
Which planet could be the best rocky planet in our solar system to search for evidence of life, besides Earth?
Mars
100
What is the hydrosphere and give an example?
all the liquid water and ice on a planet
examples: oceans, lakes, rivers, glaciers, and water underground and in the air as water vapor
100
Give an example of a landform
Mountain, channel, sand dune, valley, canyon
100
What is erosion?
when rock pieces are carried away by wind, water, ice or gravity.
100
Channel or meander
200
Name the 4 rocky planets
Earth, Mars, Venus, Mercury
200
What is the geosphere and give an example?
the solid part of a rocky planet
examples: rocks, mountains, soil, and the land
200
Currently Mars has no liquid water, but it does have what?
ice at the poles
200
What is deposition?
when the eroded material settles in a new place.
200
Delta
300
What 2 things does a planet need to support life?
Water and an energy source
300
What is the atmosphere and give an example?
the mixture of gases surrounding a planet
examples: air, carbon dioxide, nitrogen
300
To find out if Mars was once habitable, scientists are searching for evidence of what?
past liquid water
300
What is weathering AND give an example?
1. when rocks break down into smaller pieces.
Examples:
- wind blowing sand
- water freezing and thawing- the freezing water expands cracks and breaks rock
- plants growing roots in cracks
300
Oxbow Lake
400
What does habitable mean?
having the conditions necessary to support life
400
What is the biosphere and give an example?
all the living things on a planet
examples: plants, animals, people, and tiny organisms that live in the air, water, and soil
400
What is a channel?
a long, narrow groove that forms where water, lava, or other liquid flows
400
How do erosion, deposition, and weathering work together?
1. Weathering breaks down the rock.
2. Erosion moves the pieces.
3. Deposition drops them in a new spot
400
What is the inside of the curves called (where deposition is occurring)?
Point Bar
500
Explain how distance from the sun affects the habitability of a planet.
Planets that are closer to the sun are blank and blank.
Planets that are further from the sun blank.
Planets that are closer to the sun are very hot and too hot for life.
Planets that are further from the sun are very cold.
500
Name the 4 spheres of Earth's system
Hydrosphere, biosphere, atmosphere, geosphere.
500
What is a geologic process?
an event or series of events that causes changes in the geosphere, such as flowing water or flowing lava
500
True or False: Weathering, Erosion, and Deposition need to happen IN ORDER at all times.
True!
500
What is the outside of the channel called (where erosion is occurring)?
Cut bank