Other courses might deal with local environmental issues and decision making. The many misconceptions held by students and adults should be addressed. These ideas require an ability to think abstractly and have a well-developed mathematical sense. Through a study of earth science, students can consider the effects that human activities may have on the earth's four major interacting systems, as exemplified by physical-world situations. Teachers' Notes Properties and Changes of Earth Material Earth Materials Water, rocks, soil, and living organisms can be found on earth's surface.
Rocks have different appearances.
Sort rocks by color, size, and shape. This is a sorting experience and the criteria used are not meaningful to the actual classification of rocks, e.g., sedimentary, igneous. Chart the hours of daylight. Observe and record seasonal changes as they occur. Assume that students need to learn how to use instruments like thermometers, microscopes, etc.