Balancing Chemical Equations Reactions Conservation of Mass NGSS MS-PS1-5

This assignment is NO prep and it’s totally student centered. ALL of your students will be able to balance chemical equations after this activity!

This activity hits many learning styles to reach ALL OF YOUR STUDENTS! I use it to front load balancing chemical equations, however you can use it as a review OR FLIP THE CLASSROOM as well. You can make it completely student centered or facilitate the activity too. By the time the students are done with the activity they have a very good grasp of balancing chemical equations and understanding why we balance chemical equations by learning about the Law of Conservation of Matter. Students first read, or you can do a “read around”, they then watch “Chemical Changes: Crash Course Kids #19.2” on YouTube to understand the difference between chemical and physical changes. They do a fill in the blank using a word bank that goes along with the video clip. Then the 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” with Wayne Breslyn on YouTube. After this, the students watch a TedEd video clip that discusses the basic principles of the Law of Conservation of Mass and why it’s so important. Again they do a fill in the blank using a word bank that goes along with the video. After this the students go to phet.colorado.edu 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.

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

Evidence for chemical reactions

Molecules

Atoms

Chemical Bonds

Matter

Reactants

Products

Coefficients

Subscripts

The Law of Conservation of Mass/Matter

Balancing Chemical Equations

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