PH Scale Exploration
A Grade 9 science worksheet on the pH scale, exploring acids, bases, and neutral substances.
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PH Scale Exploration
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Date:
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Read each question carefully and answer to the best of your ability. Refer to the provided pH scale diagram as needed.
1. Which of the following pH values indicates a strong acid?
pH 9
pH 7
pH 2
pH 12
2. A substance with a pH of 7 is considered:
Acidic
Basic
Neutral
Alkaline
3. The pH scale ranges from 0 to .
4. Substances with a pH less than 7 are called .
5. Substances with a pH greater than 7 are called .
6. Lemon juice is an example of a basic substance.
True
False
7. Pure water has a neutral pH of 7.
True
False
8. Explain what the pH scale measures.
9. Give two examples of common acidic substances and two examples of common basic substances.
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