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Science (2015) Grade(s): 2


Conduct an investigation to describe and classify various substances according to physical properties (e.g., milk being a liquid, not clear in color, assuming shape of its container, mixing with water; mineral oil being a liquid, clear in color, taking shape of its container, floating in water; a brick being a solid, not clear in color, rough in texture, not taking the shape of its container, sinking in water).

Unpacked Content

Scientific and Engineering Practices

Planning and Carrying out Investigations

Crosscutting Concepts



Students know:
  • Different kinds of matter exists.
  • Properties of both solids (opaque, transparent, translucent, rough, smooth, float, sink, has its own shape) and liquids (color, assumes shape of container, opaque, transparent, translucent).
  • Many types of matter can be either solid or liquid, depending on temperature.


Students are able to:
  • Plan and conduct an investigation to produce data that is used to describe and classify substances according to physical properties.


Students understand that:
  • Observable patterns in the properties of materials provide evidence to classify the different kinds of materials.


  • Solid
  • Liquid
  • Physical Properties
  • Investigate
  • Classify
  • Opaque
  • Transparent
  • Translucent
  • Rough
  • Smooth
  • Float
  • Sink
  • Shape
  • Various
  • Substances
  • Conduct
  • Describe