Middle School Earth Science Teacher Guide


Features 13 core activities covering the fundamental topics of weather & climate, seismology & topography, soil properties and more.

Acid Rain and Weathering

Lab Summary

Use a pH sensor to test a simulated acid rain’s reaction with a variety of materials.


Students make simulated acid rain and test its reaction with a variety of materials as they:

  • Relate the acidity of a solution to its pH factor
  • Measure the change in pH of water as carbon dioxide is bubbled through it
  • Demonstrate how acid rain can affect and damage materials


Students gain experience conducting the following procedures:

  • Setting up the equipment and work area to produce carbon dioxide gas by reacting baking soda and vinegar, and trapping the gas in a balloon
  • Bubbling the carbon dioxide gas through a straw into a beaker of distilled water to lower its pH, making a solution that simulates acid rain
  • Testing the effect of the carbonic acid "rain" solution on various materials such chalk, an iron nail, limestone, and marble, and observing for signs of any chemical reactions

Sensors / Equipment Used:

PASPORT Chemistry Sensor


Allows students to measure Temperature, pH/ISE/ORP, Absolute Pressure & Voltage in one sensor. For use with PASPORT Interfaces.

Your Bundle Options:

Option 1:

Middle School Earth Science Starter Bundle


The equipment bundle for teaching 11 of the 13 Middle School Earth Science Teacher Guide's labs.

Option 2:

Middle School Science Standard Sensor Bundle


This bundle contains the probeware needed to perform all 49 lab activities in the Middle School Science through Inquiry lab manual.

Interface Required

This experiment may require software and an interface for data collection.