PS1.A PS1.B Balancing Chemical Equations Conservation of Mass Google Activity


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This 30-45 minute assignment is NO prep and it’s totally student centered. You can use it to front load balancing chemical equations, a review, scaffold or sub plan. Students look at a diagram of how chemical equations are broken down with reactants, yields and products and what they all mean. Then the students go more in depth with balancing by watching “How to Balance Chemical Equations in 5 Easy Steps” on YouTube. After this the students go to and do a balancing equations game that really helps them practice in a meaningful way. The last page is 15 equations that the students attempt to balance. They start relatively easy and get progressively more difficult. This is where I assign some extra credit for the more difficult ones depending on my student’s abilities.

This resource is a scaled down version of MS-PS1-5: Balancing Chemical Reactions Simulation Conservation of Mass Google. If you want a more comprehensive 1 hour version of this resource I recommend you buy that resource instead.

This product includes the following:

-13 slide Google Slideshow with key and links to video and PhET simulation.

Try Distance Learning MS-PS1-5: Conservation of Mass Chemical Reactions as a scaffold or a reinforcement for this resource!

These concepts are included:

Chemical Change

Physical Change

Chemical Reaction







The Law of Conservation of Mass/Matter

Balancing Chemical Equations

Includes the Following Middle NGSS Standards:

PS1.A: Structure and Properties of Matter

Substances are made from different types of atoms, which combine with one another in various ways. Atoms form molecules that range in size from two to thousands of atoms.

Each pure substance has characteristic physical and chemical properties (for any bulk quantity under given conditions) that can be used to identify it.

PS1.B: Chemical Reactions

Substances react chemically in characteristic ways. In a chemical process, the atoms that make up the original substances are regrouped into different molecules, and these new substances have different properties from those of the reactants.

The total number of each type of atom is conserved, and thus the mass does not change.

Includes the Following Highschool NGSS Standards:

PS1.A:  Structure and Properties of Matter Use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction. HS-PS1-7 The fact that atoms are conserved, together with knowledge of the chemical properties of the elements involved, can be used to describe and predict chemical reactions.  (HS-PS1-2), (HS-PS1-7)-PS1-4

CCC4: Systems and System Model: Students can understand that systems may interact with other systems; they may have sub-systems and be a part of larger complex systems. They can use models to represent systems and their interactions—such as inputs, processes and outputs—and energy, matter, and information flows within systems. They can also learn that models are limited in that they only represent certain aspects of the system under study.

Buy my bundle that includes all of CHEMISTRY products: ngss Chemistry Bundle

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