Follow these instructions, to react vinegar with eggshells and make a naked egg (an egg without a shell)! Eggshells are made of a substance called calcium carbonate, which is the same material the stone gargoyles are made of. The eggshell and vinegar reaction models the reaction between stone gargoyles and acid rain. Try the experiment, and then:
You've completed the Performance Task!
If you have more time, view the extension activity in the extensions.
This was the last Mystery of Chemical Magic.
View the unit's summative assessment .
In the Performance Task, students complete the final revision of their Alchemist Argument. They create a particle model showing the reaction between the stone gargoyle and acid rain to support their argument.
Preview activityFinal Alchemist Argument worksheet | 1 per student |
Final Alchemist Argument Rubric teacher-only resource | 1 per student |
Final Alchemist Argument Sample Model and Response teacher-only resource | 1 per class |
In this performance task, students use their evidence chart to revise their final argument about what happens to the stone gargoyles over time. They create a particle model to show what is happening in the reaction between acid rain and the stone gargoyles to support their argument. If you have time to extend the performance task, there is a hands-on investigation in the Extensions.
Step 1: Plan ahead
Students will need their completed The Alchemist Argument Evidence Chart that they have been adding to after each Mystery.
Students will also need their first The Alchemist Argument worksheet that they completed during the introduction to the anchor phenomenon.
Step 2: Print out worksheets
Each student will need:
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