pH Scale Exploration
Explore the pH scale, understanding acids, bases, and neutral substances, and their properties.
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pH Scale Exploration
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Read each question carefully and answer to the best of your ability. Refer to the pH scale diagram as needed.
The pH Scale
1. What does a pH value of 7 indicate?
A strong acid
A strong base
A neutral substance
A weak acid
2. Which of the following substances is generally considered a strong acid?
Water
Lemon juice
Baking soda solution
Ammonia
3. The pH scale ranges from 0 to .
4. Substances with a pH less than 7 are considered .
5. Substances with a pH greater than 7 are considered .
6. A solution with a pH of 2 is less acidic than a solution with a pH of 5.
True
False
7. Pure water has a neutral pH.
True
False
8. Describe one common property of an acid and one common property of a base.
9. Explain why the pH scale is important in everyday life or in scientific research.
Match each substance with its approximate pH range.
10. Stomach Acid
a. pH 1-3
11. Milk
b. pH 6.5-6.7
12. Bleach
c. pH 12-13