Scientific Argument - What Created a Channel on Mars
For my science class, we are wrapping up our first unit (geology on Mars), and were given the task to write a scientific argument "letter" about a specific channel on Mars based on all of the information we learned during the unit. Dear Universal Space Agency, I have figured out what formed the mystery channel on Mars. The evidence we discovered supports the claim that flowing water created the channel. Below is my evidence & reasoning to support the flowing water claim. My first piece of evidence are the satellite images of channels formed on Earth by flowing water. The images of the Earth channels show curves and branches, similar to how the mystery channel on Mars looks. As both Mars & Earth are similar rocky planets, having a similar shaped channel could mean that they were created by the same geologic process (in this case, water). My second piece of evidence is the flowing water model lab, and how the water channel held its shape even after water stopped flowi...