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.
Grade Level 6-12
Difficulty Level 3 (Developing to Mastery)
Type of Assignment Individual
(These instructions are completely customizable. After clicking "Use This Assignment With My Students", update the instructions on the Edit Tab of the assignment.)
Create a visual representation of the pH scale.
(You can also create your own on Quick Rubric.)
| Proficient |
| Emerging |
| Beginning |
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.
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