Acids and Bases

colored pencilsartist iconNow that you have explored acids and bases, you will create your own pH scale and label it with different types of materials and categories. Using the pH Scale Template, you will need to create your pH scale. Then, using the items listed in the box below, place labels for each of them in the appropriate area next to the pH scale.

Your pH scale should be creative, informative, and accurate. Make sure that your pH scale is clearly-labeled and includes a title. Before you begin, access the pH Scale Checklist to make sure that you include all of the items required for full credit. You may need to use resources outside of this course to complete this assignment. If so, please submit a Works Cited document with your assignment submission. If you need assistance, visit the Developmental Module for information on citing any resources that you used.

Your pH scale should include the following labels:

  • Increasingly Acidic
  • Increasingly Basic
  • High H+ Concentration
  • Low H+  Concentration
  • Strong Acids
  • Weak Acids
  • Strong Bases
  • Weak Bases
  • High Conductivity
  • Low Conductivity
  • Neutral
  • Sodium Hydroxide (14.0)
  • Hydrochloric Acid (0.0)
  • Milk (6.6)
  • Human Blood (7.4)
  • Ammonia (11.0)
  • Lemon Juice (2.0)
  • Tomatoes (4.5)
  • Saliva (6.9)
  • Clean Rainwater (5.5)
  • Milk of Magnesia (10.5)
  • Pure Water (7.0)
  • Battery Acid 1.0
  • Acid Rain (3.5)
  • Potato (5.4)
  • Baking Soda (8.3)
  • Soapy Water (12.0)
  • Apples (3.0)
  • Vinegar (2.2)

Options to create your pH scale include the following:

  • Hand-draw the assignment and then take a picture of it for submission to the assignment’s dropbox.
  • Hand-draw the assignment and then scan it for submission to the assignment’s dropbox.
  • Use the template in a paint or graphics program and utilize the software to create the scale. You can then submit your work to the assignment’s dropbox.
  • Use a mobile or computer-based application to create your pH scale and email or export the final product for submission to the assignment’s dropbox.


Once you have completed your pH scale, please submit your work to the dropbox.