The Sahara Desert - 2nd/3rd

Next Generation Science Standards:

2-ESS2-3 (Earth's Systems)
"Obtain information to identify where water is found on Earth and that it can be solid, liquid, or gas."

3-LS4-3 (Biological Evolution: Unity and Diversity)
"Construct an argument with evidence that in a particular habitat, some organisms survive well, some survive less well, and some cannot survive at all."