How is a molecule's shape determined? Explore bond angles, lone pairs, and VSEPR theory through a logic-based activity. Chemists pull together information about the major molecular shapes, then use it to solve puzzles.

Concepts

molecular geometry, valence electrons, bond angles, covalent bonds, covalent compounds, 3-d figures, deductive reasoning, logical reasoning

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Additional Tags

science

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Instructional Ideas

• Pair the puzzles with a full molecular geometry interactive PBS lesson and activities
• Group students and assign them a particular geometry concept to explore
  

Classroom Considerations

• Point out which angle is which in some of the more complex shapes for learners in the early stages of molecular geometry
  

Pros

• Uses great example molecules for each of the featured shapes 
• Presents content in an interesting and easy-to-deliver format
  

Cons

• None