Conservation of Mass Stations

Engaging, enriching and entertaining! This resource dives into the law of conservation of mass using eight different student-centered stations. This sometimes daunting concept is broken down into easy to understand terms as each station encourages students to find solutions and/or answers to different concepts of the law. Several stations require students to collect data to graph in order to find evidence to prove the law correct. Print and go student journals give students clearly defined, well-organized spaces to log answers. Also included in this resource is an attractive classroom poster defining student expectations during station time as well as an easy to grade quiz for formative assessment. Teacher directions, material list, and full detailed answer keys make this resource a great choice!

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Stations include the following concepts:

• Rearranging atoms model
• Model of atom size
• Phase changes and conservation of mass
• Measuring mixtures
• Fire and conservation of mass
• Evidence of reactions
• Understanding reactants and products
• How photosynthesis proves the law of conservation of mass

This resource is aligned with the following NGSS standards:

5-PS1-1. Develop a model to describe that matter is made of particles too small to be seen.

5-PS1-2. Measure and graph quantities to provide evidence that regardless of the type of change that occurs when heating, cooling or mixing substances,the total weight of matter is conserved.

MS-PS1-2. Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.

MS-PS1-5. 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.