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. Materials needed: triple beam balances or electronic scale, graduated cylinder, ziploc bags, plastic cup, water, and alka seltzer tablets.
This Introduction to Balancing Chemical Equations worksheet was designed for middle and high school students just learning about balancing chemical equations and the Law of Conservation of Mass. This double-sided worksheet features a helpful overview at the top, which students can refer back to while they’re working if they need help. There are 10 chemical equations for students to balance, each with a helpful chart for counting up the number of atoms. $
This is a great activity using Legos to build chemical equations (Lego Blocks and triple beam balances not included). You could also substitute gummy bears, etc.The second part of the lab uses a piece of alka seltzer, water and ziploc baggies to demonstrate the law of conservation of mass (matter)
Enhance your chemistry interactive notebook (INB) with the Conservation of Mass for Chemistry Interactive Notebooks and Lapbooks. The product includes student notes and interactive graphic organizers (IGOs).