MS-PS1-5: Conservation of Atoms in Reactions

Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.

Clarification Statement: Emphasis is on law of conservation of matter and on physical models or drawings, including digital forms, that represent atoms.

Assessment Boundary: Assessment does not include the use of atomic masses, balancing symbolic equations, or intermolecular forces.


Science Practices
Developing and Using Models

Disciplinary Core Ideas
PS1.B: Chemical Reactions

Crosscutting Concepts
Energy and Matter



Assessments


Phenomena

 

Anchor Charts


Video


Vocabulary

Atoms
Molecules
Chemical reaction
Reactants
Products
Conservation of matter

Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved. (Energy and Matter)


Resources


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