Ah, caffeine! What would some of us do without it? Teach your high school chemistry class the concept of sublimation as they complete a hands-on experiment to visualize the changes caffeine undergoes during heating and cooling. They observe physical changes that occur in matter, focusing on the conversion from solids to liquids.

 

 

 

Concepts

sublimation, caffeine, physical changes, properties of matter, physical properties

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Additional Tags

science

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Classroom Considerations

• Teams of three are recommended for this lab
• Tablets should be crushed carefully to ensure proper chemical reaction
• Safety protocols should be following at all times due to scientific equipment used
• Ensure learners keep adequate time for proper chemical reaction to occur

 

Pros

• Updated replacement for the traditional naphthalene sublimation lab
• Time efficient lab and assessment are easy to understand

Cons

• None

Common Core

WHST.9-10.2.a WHST.11-12.2.a