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College Experiments of the Month: Unlock Scientific Innovation

Featured Experiment for College

Vernier offers more than 1,000 experiments in biology, chemistry, engineering/robotics, and physics that can promote STEM literacy and help you integrate data-collection technology into your courses.


Chemistry of Membranes

To conduct this inquiry experiment, students use the Go Direct® SpectroVis® Plus Spectrophotometer or Go Direct Visible Spectrophotometer. The objectives of the experiment include

  • Measure color changes due to the release of betacyanin caused by damage to beet cell membranes by a 30% 2-propanol solution. 
  • Use reference sources to find out more about biological membranes before choosing and investigating a researchable question. Some topics to consider are listed below: 
    • Biological membranes
    • Vacuole
    • Tonoplast
    • Betacyanin
    • Lipids
    • Lipid solubility
    • 2-propanol
    • Alcohols


​​The Molar Mass of a Volatile Liquid

To conduct this experiment, students use the Go Direct Temperature Probe and Go Direct Gas Pressure Sensor (or the Stainless Steel Temperature Probe and Gas Pressure Sensor). The objectives of the experiment include

  • Evaporate a sample of a liquid substance and measure certain physical properties of the substance as it condenses.
  • Determine the molar mass of an unknown liquid.


Error Analysis

This experiment gives students the opportunity to understand variations in experimentally determined data. To conduct this experiment, students use the Photogate and Picket Fence. The objectives of the experiment include

  • Determine the value of the acceleration of a freely falling object.
  • Compare this value with the accepted value for this quantity.
  • Learn how to describe and account for variation in a set of measurements.
  • Learn how to describe a range of experimental values.

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