HS-PS1-2: Simple Chemical Reactions

Clarification Statement: Examples of chemical reactions could include the reaction of sodium and chlorine, of carbon and oxygen, or of carbon and hydrogen.

Assessment Boundary: Assessment is limited to chemical reactions involving main group elements and combustion reactions.


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.




Chemical reaction (e.g. sodium and chloride, carbon and oxygen, carbon and hydrogen)
Reactants and products
Bonds (i.e. ionic, covalent)
Reaction type (e.g. formation of ionic compound, combustion of hydrocarbons)
Main group elements
Valence electrons
Periodic table
Chemical properties


Learning Plans


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