Soluble and Insoluble Substances interactive worksheet | Live ... - Free Printable

Let's solve the worksheet step by step and provide explanations for each answer.

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1) Complete the table below

| Substance | Soluble / Insoluble |
|-------------|---------------------|
| Salt | Soluble |
| Seeds | Insoluble |
| Rice | Insoluble |
| Flour | Insoluble |
| Sugar | Soluble |
| Coffee | Soluble (if instant coffee; otherwise partially soluble) |
| Black pepper| Insoluble |

Explanation:
- Salt: Dissolves completely in water → Soluble
- Seeds: Do not dissolve in water; they may absorb water but don't break down → Insoluble
- Rice: Does not dissolve in water; it swells and softens but remains solid → Insoluble
- Flour: Does not fully dissolve; forms a cloudy suspension → Insoluble
- Sugar: Dissolves easily in water → Soluble
- Coffee: Instant coffee dissolves in water, but ground coffee leaves residue → Generally considered soluble if using instant
- Black pepper: Floats or sinks without dissolving → Insoluble

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2) What does the word *soluble* mean?

✔ Soluble means a substance that can dissolve in a liquid (usually water), forming a solution.

Example: Sugar is soluble in water because it disappears when mixed with water.

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3) What does the word *insoluble* mean?

✔ Insoluble means a substance that does not dissolve in a liquid. It stays as a solid even when mixed.

Example: Sand is insoluble in water — it settles at the bottom.

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4) Sand is soluble in water. True or False?

✔ False

Sand does not dissolve in water — it remains as particles and can be filtered out.

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5) Which one of these substances dissolves in water?

This question is incomplete — no options are listed. But based on the earlier table:

✔ Examples of substances that dissolve in water: Salt, Sugar, Instant Coffee

So, if given choices like salt, sugar, sand, rice — pick salt or sugar.

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6) Which material will dissolve in the water?

Again, no options provided. But from knowledge:

✔ Salt, sugar, baking soda, vinegar, etc., dissolve in water.

So, any of those would be correct answers.

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7) Which material will not dissolve in water?

✔ Examples: Sand, seeds, rice, flour, black pepper

Any of these would be correct depending on the options.

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8) Sugar is soluble in water? True or False

✔ True

Sugar dissolves completely in water to form a sweet solution.

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✔ Final Answers Summary:

| Question | Answer |
|--------|--------|
| 1) Table | Salt: Soluble<br>Seeds: Insoluble<br>Rice: Insoluble<br>Flour: Insoluble<br>Sugar: Soluble<br>Coffee: Soluble (instant)<br>Black pepper: Insoluble |
| 2) Soluble | A substance that can dissolve in water |
| 3) Insoluble | A substance that cannot dissolve in water |
| 4) Sand soluble? | False |
| 5) Dissolves in water? | Salt, sugar, coffee (instant) |
| 6) Dissolves in water? | Salt, sugar, etc. |
| 7) Does NOT dissolve? | Sand, seeds, rice, flour, black pepper |
| 8) Sugar soluble? | True |

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If you have specific options for questions 5–7, I can tailor the answers further!