1) What geologic process could have formed the channel on Mars? 2)
“Future of Mars Exploration- read the article on p. C1-C2
Write a paragraph that includes answers to the following:
What are the next steps in the search for evidence of habitability on Mars?
Would you be interested in being one of the first humans to explore Mars? Why or why not?

Canal on Mars- read the article on p. D1
Write a paragraph that includes answers to the following:
Why did some people think that there was evidence of intelligent life on Mars?
How was this idea refuted(proved to be false)?

Below are Chapter Questions & Key Concepts that were addressed in the unit

Chapter 1 Question
What geologic process could have formed the channel on Mars?

Key Concepts
Earth, Mars, and other rocky planets can be thought of as systems. These systems are made up of interacting spheres that can include the geosphere, atmosphere, hydrosphere, and biosphere
When landforms on different rocky planets look similar, it is evidence that they may have been formed by the same geologic process.

Chapter 2 Question
How can we gather more evidence about whether lava or water formed the channel on Mars?

Key Concepts
Scientists can use models to test their ideas and get evidence about processes in the natural world that are difficult to observe
Landforms can provide evidence about the past because they remain after the geologic processes that formed them stop happening
Models represent the natural processes being investigated in important ways, but they are not exactly the same