Driving question : How does the molecular mass of an evaporating alcohol affect the rate of evaporation?
In this activity students investigate process evaporation. They use a temperature sensor to record temperature changes during evaporation of alcohols. They investigate how the molecular mass of evaporating alcohol affects the rate of evaporation.
Topic: States of matter,
Concepts: Change of state, Molecular mass, Rate of evaporation, Temperature of evaporation,
Grade level: Middle School (11-14 years),
Activity type: Data logging,
Sensors: Temperature sensor,
Interface requirements: Single analog sensor input,
The Student Worksheet gives investigation instructions for students.
The Teacher Notes includes teacher commentaries such as didactical approach, exemplary questions, assignments and data analysis.
The Science Background describes the scientific principles that underlie the activity.