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6th Grade Science / Lesson 13 - Review

Review

What will we be learning today?

  • In this lesson, we are going to review vocabulary words for the Unit 5 Exam.

  • Matter - any solid, liquid or gas

    Mass - a measure of how hard it is to push or pull an object

    Volume - the amount of space an object takes up


    Density - the amount of mass in a certain volume of material; found by dividing the mass of an object by its volume

    Properties - things you can observe with your senses

    Physical Properties - a property that can be observed without changing the identity of a substance

    State - when a substance changes form solid to liquid or liquid to gas, we say it is changing its state

    Melting Point - the temperature at which a substance changes from a solid to a liquid

    Physical Change - a change in size, shape, or state, without forming a new substance


    Suspension - a mixture made of parts that separate upon standing

    Emulsion - suspension of two liquids that usually do not mix together

    Colloid - undissolved particles or droplets that stay mixed in another substance

    Soluble - "can be dissolved"

    Solution - a mixture of one substance dissolved in another so that the properties are the same throughout

    Solute - substance that becomes dissolved

    Solvent - is the part of a solution that dissolves a substance


    Alloys - most "metal" objects around us are actually solid solutions

    Chemical Change - a change in matter that produces a new substance with different properties from the original

    Pressure - the force on each unit of area of a surface

    Mixture - any combination of two or more substances in which the substance keep their own properties