This is a very versatille project that can be interpreted in many ways.
The students must compare and contraste the different weather seasons for the different hemispheres (north america vs south america). They have to make visual representation and then visualize their findings in some way.
I have given instructions and some examples from student work. Let me know if it is confusing because it's a little hard to explain. The students loved this activity once they figured out how to do it. Give it a try! Enjoy!