A place for insight, inspiration, and experiments.
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.
- 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:
- Michaelis-Menten constant
- Lineweaver-Burk plot
- 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.
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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