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Learning Resource Type

Classroom Resource

Liquids Have Properties

Subject Area





In this lesson, students will be able to plan and carry out an investigation to discover and compare the properties of liquids. Students will develop an understanding that liquids, like solids, have their own characteristic properties.

Students investigate three clear colorless liquids: water, mineral oil, and corn syrup. Students place drops of each liquid on the surface of a zip-closing plastic bag and see that the liquids look and act differently. Students tilt the bag and see that the liquids move down the plastic at different rates. Finally, students see a demonstration in which a drop of food coloring is placed in each liquid, and students make observations about the different ways the food coloring looks in each.

    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



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


    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.

    Scientific and Engineering Practices

    Planning and Carrying out Investigations

    Crosscutting Concepts

    Link to Resource

    CR Resource Type

    Lesson/Unit Plan

    Resource Provider

    American Chemical Society

    Resource Provider other

    American Chemical Society


    Text Resources: Content is organized under headings and subheadings
    Video resources: includes closed captioning or subtitles

    License Type