This Polyatomic Ions Puzzle is an excellent active practice tool to help chemistry students learn the names and formulas of common polyatomic ions!
The goal of this puzzle is to arrange the puzzle pieces so that the names of the polyatomic ions on the edges of each piece match up to their corresponding chemical formulas on the edges of the adjacent pieces.
The attached PDF includes an instructions sheet, a grid of puzzle pieces which can be cut out (and laminated - optional), a blank grid for students to use as a template, and a reference table of the polyatomic ion names and formulas included in the puzzle. The original grid of puzzle pieces also serves as an answer key for the completed puzzle. The instructions sheet and polyatomic ions reference table sheet are included with both colored backgrounds and transparent backgrounds in order to facilitate printing.
This puzzle includes opportunities for scaffolding, and can be used by students of various levels to reinforce their knowledge of common polyatomic ion names and formulas. For students who are just being introduced to polyatomic ions, the puzzle can be used as a familiarization activity or anticipatory set, and can be completed with the help of the included reference table and blank grid template. For students who have already become familiar with polyatomic ions, the puzzle can be used as an active practice or review game, and can be completed with limited access to reference materials.
-Cut out puzzle pieces and shuffle them before giving them to your students.
-Have students work individually or in small groups to arrange puzzle pieces so that all the polyatomic ion names along the edges are matched with their correct chemical formulas. (Finished puzzle should match original template.)
*Suggestion: For increased durability, laminate puzzle pieces and puzzle grids so that they can be used year after year.
**To scaffold for easier problem solving, have students use the provided blank puzzle grid as they arrange the pieces.
***To scaffold even further, provide students with the list of polyatomic ion names and formulas to use as reference. (This may be beneficial if the puzzle is being used as an intro activity before students have had time to become familiar with the common polyatomic ions.)
Arrange puzzle pieces so that all the polyatomic ion names along the edges are matched with their correct chemical formulas.
Polyatomic Ions Puzzle
by Heather Carmody
is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License