NGSS MS-PS1-1,2 Although these resources align with the physical science Next Gen standards, they were actually created for use in an Earth Science classroom. These resources introduce students to: elements, compounds, heterogeneous and homogenous mixtures, physical and chemical properties, calculating density, and separating a mixture (my fave!) using physical properties of matter. Although these activities are appropriate for all middle school, they were created with 7th graders in mind, and are spot on for that level. Check out individual previews.
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