This Reading in the Content-Area of Science lesson gives a straight-forward presentation of the processes of weathering and erosion and how they change Earth. The major forces explained are 1) the water cycle, 2) running water, 3) wind abrasion and 4) ice movement, and 5) blowing sand. After the lesson there are 4 sets of questions, which are: 5 fill-in questions, 5 true or false questions, 5 matching-vocabulary questions, and 5 short answer questions. The 20 questions evaluate main ideas, detai