Scientific Argument
When a researcher presents facts and observations that Mars once had water, these facts are referred to as
evidence
Features such as valleys and dried river beds found on Mars are evidence that water once flowed through long, narrow grooves called _________.
channels
When we began our research, we said that either _____ or ____ formed the channel on Mars.
lava or water
(flowing lava or flowing water)
hydrosphere
Asking a question and using evidence to help answer it is called creating a _______________
scientific argument
All scientific arguments begin with a ___
question
This sphere is the solid part of earth
the geosphere
Mars, Venus, Earth and Mercury are all _________ planets.
rocky
This is where all living things on a planet can be found
biosphere
channels
A scientist states that Mars once had liquid water on the surface. This statement which is an answer to a proposed question is called the ________.
claim
geologic process
If Mars could support all forms of life, it would be referred to as ________
habitable
The mixture of gases surrounding any planet is referred to as the __________.
atmosphere
Where are conglomerate rocks usually found?
near areas with flowing water
A student argues that dry riverbeds on Mars suggest it once had water. To back up her point she says, "Rivers require water to form." Thus is an example of
reasoning
This image was found at the bottom of the channel on Mars, where we believe water spread out and created a triangle-like shape
alluvial fan
A canyon or mountain on the surface of Mars would be a example of a _______________
landform
A scientist that studies geospheres of planets in the solar system is called a __________________
geologist
(or planetary geologist)
A type of sedimentary rock made of rounded sediments that are cemented together is called
conglomerate rock
Please state our claim for this unit.
Flowing water formed the channel on Mars
(Other responses that word this differently will also be accepted).
This is used to help us understand something - we put more convincing evidence to the top and less convincing evidence towards the bottom
evidence gradient
When analyzing data on Mars, scientists use images and data to create diagrams, objects of computer programs.
These are referred to as ____________.
models
a system
Any planet with a solid surface is called a _________
rocky planet