This unit is designed to introduce the concept of abstract modeling to high school students. The mathematics involved could be taught from tenth grade to twelfth grade. The ideas are fairly simple. Together they combine into a long process. With the use of spreadsheet programs, the tasks can become possible for any student. The modeling will use probability and statistics to model the effects of the atmosphere on objects that move through it. This is commonly called air drag. I will not use pre-developed formulas. The formulas will be developed from basic concepts. These concepts are the laws of motion and momentum. The laws will be simplified into common sense concepts. The models that we will create are of the atmosphere, rain falling in the atmosphere, a baseball falling from the sky, a baseball being hit by a bat, and a rocket being launched from the ground.