Vocab
Geosphere
Flowing Water
Flowing Lava
Models, Arguments & Evidence
100
Any planet with a solid surface, such as Earth or Mars
Rocky planet
100
What are geologic processes?
Events or series of events that cause changes in the geosphere
100
True or False: Flowing water on Earth CAN form a triangle-shaped landform.
True!
100
True or False: Flowing lava CAN form a triangle-shaped landform.
True! The lava that does not cool/harden pools at the bottom in a fan shape.
100
A convincing argument (claim) is supported by ________ and ________.
Evidence and reasoning.
200
Having the conditions necessary to support life
Habitable
200
What are 3 examples of landforms that can be found in the geosphere on Mars?
Channels, volcanoes/mountains, craters.
200
Flowing water carries small pieces of rock called ______ when it flows down a steep slope, and the pieces get rounded and cemented together to form solid rock.
Sediment
200
Lava flows down a steep slope and forms solid rocks when it cools that are ______ in color.
Black / dark
200
In the article Investigating Landforms on Venus, what did Gerya build to test whether the high temperature of Venus's surface and the planet's thin crust make it possible for novae to form there?
A computer model
300
A long, narrow groove that forms where water, lava, or other liquid flows
Channel
300
True or False: Landforms can provide evidence about the past because they REMAIN after the geologic processes that formed them STOP happening.
True! The channel on Mars does not have water right now, but there is evidence that it was formed by water and then remained after it stopped flowing.
300
Describe what channels formed by flowing water look like.
Narrow, curved, winding, branching, etc.
300
___ are domed landforms on Venus thought to be created by melted rock rising from underground.
Novae
300
True or False: The scientific water/lava models showed us that the channel on Mars flows from low to high elevation.
False! The channel is on a steep slope. It flows from high elevation to lower elevation.
400
A feature that forms on the surface of a planet, such as a mountain, channel, or sand dune
Landform
400
What is one reason why scientists use rovers to learn more about the surface of a planet?
This allows for the collection and analysis of samples, such as rocks and soil.
400
The channel on Mars is important for scientists to study because...
If the channel was created by water, then the planet may have once been habitable.
400
In the article "Investigating Landforms on Venus", what is the result of Gerya's comparison between his computer model and the actual surface of Venus?
The domes in the model were the same size and shape as those on Venus.
400
How do models help scientists answer questions?
Scientists can use models to test their ideas and get evidence about processes in the natural world that are difficult to observe.
500
An event or series of events that causes changes in the geosphere, such as flowing water or flowing lava
Geologic process
500
How does our understanding of Earth help us learn about other rocky planets, like Mars?
By making comparisons. When landforms on different rocky planets look SIMILAR, it is evidence that they may have been formed by the SAME geologic process.
500
Both Earth and Mars have channels. How could we determine the channel formed?
- Rocks found in the area
- Lava or water found in the channel
500
How does lava form a channel? Think about the video from the previous lesson and how the lava moves.
The lava flows and the lava on the bottom and edges cool and harden, which builds the channel.
500
What features of this model will help to answer the question: Why is the river so narrow and deep?
The river is narrow and deep because of the angle of the sand table and the speed of the water.