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

“Transpiration of Plants”

To conduct this inquiry experiment, students use the Go Direct^® Gas Pressure Sensor or Gas Pressure Sensor. The objectives of the experiment include

• Measure transpiration rates under different conditions. 
• Use reference sources to find out more about transpiration before choosing and investigating a researchable question. Some topics to consider are listed below:
  • transpiration
  • cohesion-tension theory
  • water potential
  • osmosis
  • stomata
  • water potential gradient
  • xylem
  • mesophyll cell

Check out a short video related to this experiment.

Chemistry

“Determining the Mole Ratios in a Chemical Reaction”

To conduct this experiment, students use the Go Direct Temperature Probe or Stainless Steel Temperature Probe. The objectives of the experiment include

• Measure the enthalpy change of a series of reactions.
• Determine the stoichiometry of an oxidation-reduction reaction in which the reactants are known but the products are unknown.

Physics

“Simple Harmonic Motion: Kinematics and Dynamics”

To conduct this experiment, students use the Motion Detector, Dual-Range Force Sensor, and Springs Set.

The objectives of the experiment include

• Collect position vs. time data as a weight, hanging from a spring, is set in simple harmonic motion (SHM).
• Determine the best-fit equation for the position vs. time graph of an object undergoing SHM.
• Define the terms “amplitude,” “offset,” “phase shift,” “period,” and “angular frequency” in the context of SHM.
• Predict characteristics of the corresponding velocity vs. time and acceleration vs. time graphs, produce these graphs, and determine best-fit equations for them.
• Relate the net force and acceleration for a system undergoing SHM.