Make predictions based on past experience with a particular material or object. Understand that scientists use tools such as rulers, meter sticks, yard sticks, thermometers, hand lenses, and balances, and know the purpose of each of these tools. Grades PreK-2 Earth Science Water, rocks, soil, and living organisms can be found on earth's surface. Recognize that air is all around us. Air takes up space, has weight, is odorless, colorless and tasteless.
Rocks have different appearances.
Understand that rocks have many different appearances and can be sorted according to their distinct, observable, properties. Identify some events around us that have repeating patterns including the seasons of the year, day and night. Weather changes from day to day. Understand that weather changes can be described by measuring such things as temperature, wind speed and direction, and precipitation. The sun supplies heat and light to the earth and is necessary for life.