What affects the density of water4/14/2024 Students are introduced to the concept of density and that density has to do with how heavy something is relative to its size.Assessment does not include density or distinguishing mass and weight.”Īlthough the standard does not call for density to be used as a characteristic property to identify a substance, a basic introduction to density is included here as an optional element of a learning progression leading up to a middle school understanding of density. Note: The NGSS Structure and Properties of Matter for 5 th grade, Performance Expectation 5-PS1-3 states “density is not intended as an identifiable property. NGSS 5-PS1-3: Make observations and measurements to identify materials based on their properties.If your students have already learned the meaning of volume and mass, you can easily use those terms to define density as Density = mass/volume and then use those terms in the lesson. We are also using “heavy”, “light”, and “weight” instead of “mass”. Note: We are purposely using the terms “size” and “amount” instead of “volume” in discussions of density.
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