The pH Scale
Grade 11•45 minutes
Learning Objective
I can identify the pH levels of common substances and classify them as acidic, neutral, or basic.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
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1. What does pH stand for, and why is it important in determining the acidity or basicity of a substance?
2. Classify the following substances as acidic, neutral, or basic: lemon juice, seawater, and ammonia solution. Explain your reasoning for each classification.
3. Describe the general characteristics of acidic substances, including their taste and pH range.
...and 4 more questions
Educational Video
Introduction to pH | Biology foundations | High school biology | Khan Academy
Khan Academy