Why do different substances have different boiling points? Through an interactive lesson, learners explore how intermolecular attractions affect boiling points. They interact with molecules through an animation and make conclusions about the strengths of the attraction between different types of molecules.

Concepts

boiling points, intermolecular forces, polar molecules, matter, particulate matter, states of matter

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Additional Tags

science

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Instructional Ideas

• Have pupils complete the lesson independently and print a copy of their results
• Choose questions from the worksheet for an exit card to check for understanding

Classroom Considerations

• Expects an understanding of polar and nonpolar molecules

Pros

• Animations provide a strong visual representation of the movement of molecules 
• Offers questions to check for understanding during each page of the lesson

Cons

• None