1. Using the words below, explain the differences between these 2 changes to Earth's surface.
I words to use: Scale of Change, Fast, Slow, Large, Small, Erosion, Chemical Weathering, Physical
Weathering.

In this experiment you were asked to present three possible mechanisms. describe those mechanisms here and include drawings of those mechanisms. how will the bromination of trans-cinnamic acid and trans-stilbene allow you to distinguish between the three possibilities? what would you expect to find in your data in each scenario?

When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?

What characteristic makes a cell membrane selectively permeable