Law of Conservation of Mass Middle School Lesson and Worksheet - This physical science lesson is specifically designed for Middle School science and covers the NGSS MS-PS1-5 Standard. It is meant to be done over 2 days and includes a student worksheet with an answer key that can be used to check their understanding.

The lesson starts by describing what the law of conservation is and how it relates to chemical reactions. It then overviews what reactants and products are in simple terms and checks for student understanding using a simplified example. The lesson then teaches how to determine the number of atoms present in a molecule which allows us to relate what we've learned using the simple example to a real-life example using a simple chemical reaction. The lesson concludes with multiple examples which get slightly more difficult.

NGSS: The material is all explained at the appropriate level using simplified terminology and examples. The emphasis is on the law of conservation of matter using physical models and drawings. It does not include atomic masses, balancing, or intermolecular forces.

This lesson package includes the lesson (student and teacher versions), TWO embedded videos, lots of good colorful diagrams, a student worksheet with answers, a student lesson handout as a document, and an auto-graded, 4-question Exit Ticket via Google Forms.

The lesson content includes:

• Law of Conservation of Mass
• Chemical Reactions
• Reactants and Products
• Counting Atoms
• Practice Questions

Included in the lesson package:

• The teacher version of the presentation
• The student version of the presentation
• TWO embedded videos
• An auto-graded Exit Ticket
• Student lesson handout
• Student Worksheet

The student version of the presentation contains multiple blanks that need to be filled in throughout the lesson. These blanks are conveniently underlined and bolded on the teacher copy. I have found this to be the most effective means of keeping my students engaged and active without having them write everything out. This also leaves more time for discussion and activities.

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Google and Distance Learning Ready

• This lesson includes both Office and Google formats for ALL resources. The presentation is in PowerPoint and Google Slides while all documents contain Word and Google Doc versions.
• Your resource is perfect for distance learning and integrates seamlessly with Google Classroom as I've included a link that will automatically create a copy of the resources and put them directly into your Google Drive with one click.
• Purchase --> Open --> Click --> Assign to your students

Having both options allows you to use either without worrying about formatting issues as all the work has already been done for you. It safeguards you in case your department or school decides to go Google 100% and allows you as well as your students to access everything no matter where you are or what kind of equipment is being used.

Exit Ticket

Included in your package is an Exit Ticket which can be directly accessed from the last Google Slide. Additionally, your purchase will create a copy of the Google Form Exit Ticket which you can edit to meet your class needs.

I also have a range of assignments and lessons/units from other grade levels at my store. Please CLICK HERE to have a look around and don’t forget to follow if you like what you see.

Also, please visit my blog Teach With Fergy for my thoughts on teaching, learning, and everything in between.