It looks like you've uploaded an image of a
pH Scale Cut and Stick activity from a science worksheet. The task involves matching substances to their correct position on the pH scale (0–14) and labeling them as
strong acid,
weak acid,
neutral,
weak alkali, or
strong alkali.
Since I can't view images directly, I’ll guide you through how to solve this type of problem based on typical content for such worksheets.
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🔬 Understanding the pH Scale:
The pH scale ranges from
0 to 14 and measures how acidic or basic a substance is:
| pH Range | Description | Examples |
|---------|--------------------|--------|
| 0–3 |
Strong Acid | Battery acid, stomach acid |
| 4–6 |
Weak Acid | Vinegar, lemon juice |
| 7 |
Neutral | Pure water |
| 8–10 |
Weak Alkali | Baking soda, milk of magnesia |
| 11–14 |
Strong Alkali | Bleach, drain cleaner |
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✔ Steps to Solve the "Cut and Stick" Task:
1.
Identify the substances listed in the exercise (they are usually given in a box or list).
2.
Determine each substance’s pH using your knowledge or a reference.
3.
Place the substance on the correct number on the pH scale (0–14).
4.
Cut out the labels (e.g., “strong acid”, “weak alkali”) and stick them under the appropriate section of the scale.
5.
Label the regions:
- Left side (0–6): Acids
- Middle (7): Neutral
- Right side (8–14): Alkalis
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🧪 Example Matching (Common Substances):
| Substance | Approximate pH | Category |
|-------------------|----------------|-----------------|
| Lemon juice | ~2 | Weak acid |
| Vinegar | ~3 | Weak acid |
| Coffee | ~5 | Weak acid |
| Pure water | 7 | Neutral |
| Baking soda | ~9 | Weak alkali |
| Soap | ~10 | Weak alkali |
| Bleach | ~12 | Strong alkali |
| Stomach acid | ~1–2 | Strong acid |
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📌 How to Complete the Diagram:
1. On the
left side of the scale (pH 0–6), place
acidic substances.
2. At
pH 7, place
neutral substances.
3. On the
right side (pH 8–14), place
alkaline substances.
4. Use the labels:
-
Strong acid: pH 0–3
-
Weak acid: pH 4–6
-
Neutral: pH 7
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Weak alkali: pH 8–10
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Strong alkali: pH 11–14
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💡 Tips:
- If the worksheet has blank boxes above or below the scale, fill them with the names of substances.
- Cut and paste the category labels (like "strong acid") into the correct region.
- Make sure the
labels match the color zones — red/orange = acids, green = neutral, blue/purple = alkalis.
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If you can provide the
list of substances or describe what’s written in the image, I can help you
match them exactly to the pH scale!
Let me know if you'd like a printable version or a completed example!
Parent Tip: Review the logic above to help your child master the concept of ph scale worksheet middle school.
