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Does Air Weigh Anything?

Source Institutions

    Colorado State University

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Does Air Weigh Anything?

The demonstration/experiment provides quick proof that air has mass. Learners measure the mass of a 2-liter bottle attached with special "Fizzkeeper" cap before and after extra air molecules are pumped into the bottle. Learners will discover that when you use the pump cap, more air molecules are pumped into the bottle, which increases the pressure and the mass. In this experiment, you can easily increase the mass of the bottle by a few grams--a measurable amount!

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
5 to 10 minutes

Estimated Materials Cost:
$1 - $5 per group of students

Age Range:
Ages 8 - 14

Resource Types:
Activity, Demonstration, Experiment/Lab Activity, Lesson/Lesson Plan


Materials List (per group of students)


  • Earth and Space Science
    • Earth Structure
      • Atmosphere
  • Mathematics
    • Data Analysis and Probability
      • Data Analysis
      • Data Collection
    • Measurement
  • Physical Sciences
    • Motion and Forces
    • States of Matter
      • Gases
    • Structure and Properties of Matter
      • Elementary Particles and Nuclear Physics
      • Mass and Weight
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations
      • Gathering Data
      • Formulating Explanations


To use this activity, learners need to:

  • see
  • read
  • touch

Learning styles supported:

  • Involves hands-on or lab activities


This resource is part of:

Access Rights:

  • Free access



  • All Rights Reserved, Little Shop of Physics, ©2009


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  • Thumbnail Weather by conniwhite on 2012-03-07