MS-PS1-1: Atomic Composition Model

Develop models to describe the atomic composition of simple molecules and extended structures. (Scale, Proportion, and Quantity)

Clarification Statement: Emphasis is on developing models of molecules that vary in complexity. Examples of simple molecules could include ammonia and methanol. Examples of extended structures could include sodium chloride or diamonds. Examples of molecular-level models could include drawings, 3D ball and stick structures, or computer representations showing different molecules with different types of atoms.

Assessment Boundary: Assessment does not include valence electrons and bonding energy, discussing the ionic nature of subunits of complex structures, or a complete description of all individual atoms in a complex molecule or extended structure is not required.




Assessments

The following assessments were created by science teachers hoping to better understand the NGSS. In most cases teachers went from standard to assessment in around an hour.  These are drafts and should be used accordingly. Feel free to improve these assessments or contribute to the collection. Learn more about assessment design here.


Phenomena

 

Anchor Charts


Video


Vocabulary

Bulk substances (e.g. solids, liquids, and gases at the macroscopic level)
Pure substances
Atoms
Molecule (e.g. ammonia,  methanol)
Extended Structure (e.g. sodium chloride, diamonds)
Scale, Proportion, and Quantity


Learning Plans


*Next Generation Science Standards is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards were involved in the production of this product, and do not endorse it.  Visit the official NGSS website.