Activity Overview

The pH scale is used to compare different substances and identify how acidic or basic they are. A pH of 1 is a strong acid, and a pH of 14 is a strong base. If a substance has a pH of 7, it is said to be neutral (not acidic or basic). In this activity, students will demonstrate their understanding by creating their own version of the pH scale. Students will link together the strength of the acids and bases and their corresponding pH value. They should also include the colors a universal indicator turns when it is mixed in with a substance.

Alternatively, have students complete this assignment after testing different substances in the lab. Students recreate the pH scale choosing the colors they found for the different substances they tested.

Template and Class Instructions

(These instructions are completely customizable. After clicking "Use This Assignment With My Students", update the instructions on the Edit Tab of the assignment.)

Student Instructions

Create a visual representation of the pH scale.

  1. Click "Start Assignment".
  2. Color the boxes to show what color the universal indicator turns at different pH values.
  3. Use images to show examples of different substances in the pH range.

Lesson Plan Reference

Grade Level 6-8

Difficulty Level 3 (Developing to Mastery)

Type of Assignment Individual


(You can also create your own on Quick Rubric.)

pH Scale
Complete your own pH scale using Storyboard That. Change the colors of the boxes to what you would expect the universal indicator to turn. Add some illustrations to show examples of substances in that pH range.
33 Points
16 Points
0 Points
Universal Indicator Colors
All the boxes are colored correctly showing each pH value.
Most of the boxes are colored correctly.
Some of the the boxes are colored correctly.
The visualizations clearly represent examples of each pH level.
There are visualizations for each pH level but they are not clear and someties muddled.
There aren't visulaizations for every pH level.
Evidence of Effort
Work is well written and carefully thought out.
Work shows some evidence of effort.
Work shows little evidence of any effort.

More Storyboard That Activities

Acids and Bases

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