Conservation of Mass Alka Seltzer Lab

Grade Levels
7th - 9th
Standards
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Pages
3 pages
$3.00
$3.00
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Description

In this lab students will use alka seltzer to understand the law of conservation of mass. I use this lab before I teach the law so students can discover it on their own. This lab worksheet is fully editable.

Materials needed: triple beam balances or electronic scale, graduated cylinder, ziploc bags, plastic cup, water, and alka seltzer tablets. I've also found that denture cleaner tablets work well and show a color change which the kids like.

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Total Pages
3 pages
Answer Key
Included
Teaching Duration
45 minutes
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Standards

to see state-specific standards (only available in the US).
NGSSMS-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. Emphasis is on law of conservation of matter and on physical models or drawings, including digital forms, that represent atoms. Assessment does not include the use of atomic masses, balancing symbolic equations, or intermolecular forces.

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