S:PS1:6:2.4

Investigate the relationships among mass, volume and density.

Explain that some materials can exist in different states; and describe the distinct physical properties of each state of matter.

Recognize that substances can be classified by observable properties.

Collect and organize data about physical properties in order to classify objects or draw conclusions about objects and their characteristic properties (e.g., temperature, color, size, shape, weight, texture, flexibility).

Make a prediction about what might happen to the state of common materials when heated or cooled; or categorize materials as solid, liquid, or gas.