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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.

Biology

Testing Enzyme Activity (Spectrometer)

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

  • Use a colorimetric assay to determine the rate of reaction of the enzyme peroxidase.
  • Use reference sources to find out more about enzymes, turnips, and peroxidase before choosing and investigating a researchable question. Some topics to consider are listed below:
    • Catalysts
    • Enzymes
    • Substrates
    • Peroxidase
    • Proteins
    • Denature
    • Michaelis-Menten constant
    • Lineweaver-Burk plot

Chemistry

Fractional Distillation of Esters

To conduct this experiment, students use the Go Direct Mini GC and the Go Direct Wide-Range Temperature Probe or Wide-Range Temperature Probe. The objectives of the experiment include

  • Measure and analyze the retention times and peak areas of ethyl acetate and butyl acetate.
  • Conduct the fractional distillation of a mixture of ethyl acetate and butyl acetate.
  • Measure and analyze the retention times and peak areas of the fractions.
  • Estimate the mole fraction of the components of the mixture.

Physics

Projectile Motion (Projectile Launcher)

To conduct this experiment, students use the Go Direct Projectile Launcher or Vernier Projectile Launcher and the Projectile Stop. Extensions of this experiment use the Time of Flight Pad and Independence of Motion Accessory. The objectives of the experiment include

  • Measure the launch speed of a ball using a projectile launcher.
  • Apply concepts from two-dimensional kinematics to predict the impact point of a ball in projectile motion.
  • Take into account trial-to-trial variations in the speed measurement when calculating the impact point.

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