Physical and Chemical Changes Craftivity - The Owl Teacher - Free Printable

Let's solve this worksheet step by step.

Objective:

Color the examples of physical changes in red and chemical changes in blue.

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🔍 Key Definitions:

- Physical Change:
- No new substance is formed.
- Only a change in shape, size, or state (like melting, boiling).
- Can usually be reversed.
- Examples: cutting paper, boiling water, melting ice.

- Chemical Change:
- A new substance is formed.
- Often involves color change, gas production, or heat/light release.
- Usually cannot be reversed easily.
- Examples: burning wood, rusting iron, cooking food.

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Now let’s go through each image and determine if it’s a physical or chemical change.

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✔ Step-by-step Analysis:

#### Row 1: "no new substance is formed"
This clue points to physical changes.

1. Scissors cutting paper → Physical (just shape change) → ✔ Red
2. Kettle boiling water → Water turns to steam (state change) → Physical → ✔ Red
3. Glass with bubbles (dissolving?) → If it's just dissolving (e.g., sugar in water), no new substance → Physical → ✔ Red
4. Tearing paper → Shape change only → Physical → ✔ Red

> ✔️ All in this row are physical changes → Color red

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#### Row 2: "only a shape change"
Another clue for physical change.

1. Bending a metal rod → Shape change, no new substance → Physical → ✔ Red
2. Ice melting in a glass → Solid to liquid → Physical → ✔ Red
3. Text says "only a shape change" → This is a hint → Physical → ✔ Red
4. Frying eggs in a pan → Eggs cook (turns solid, color changes) → Chemical change → ✘ Blue
5. Lighted match → Burning = combustion → New substances (CO₂, ash) → Chemical → ✘ Blue

> ⚠️ First three: Red, last two: Blue

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#### Row 3: Mixed clues

1. Whisking eggs in a bowl → Mixing, but not cooked → Physical (unless it's beating into foam, still physical) → ✔ Red
2. Campfire burning logs → Combustion → Chemical → ✘ Blue
3. Toasting bread → Browning (Maillard reaction) → Chemical → ✘ Blue
4. Text: "can be reversed" → Clue for physical → ✔ Red
5. Crushed eggshells → Just broken, no new substance → Physical → ✔ Red

> So: 1st, 4th, 5th → Red; 2nd, 3rd → Blue

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#### Row 4: "a solid is formed"

1. Text: "a solid is formed" → Could be chemical (precipitate) or physical (freezing). But context helps.
- Next image: Boiling kettle → Steam rising → Physical → ✔ Red
2. Melting ice cube → Ice melts → Physical → ✔ Red
3. Broken toy car → Physical damage → Physical → ✔ Red
4. Text: "can't be reversed" → Clue for chemical → ✘ Blue

> Wait — "a solid is formed" might be misleading. Let's check:
- Boiling kettle: Water becomes vapor → Not forming a solid → So maybe not a solid formed?
- But the text says "a solid is formed" — that might be a label, not describing the image.

Actually, the text is in the cell, so we need to interpret:

- The first cell says “a solid is formed” → That's a clue for chemical change? Not necessarily. Some physical changes form solids (e.g., freezing).

But look at the images:
1. Kettle boiling → Liquid to gas → No solid formed → So perhaps the label is misaligned?

Wait — better interpretation: Each row has a clue, and the images are examples.

Let’s re-analyze based on each image, using the clues as hints, but focus on the image.

So better approach: Look at each image, decide if it's physical or chemical, regardless of the label (but use labels as help).

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🔎 Better Strategy: Evaluate each image independently.

Let’s list all images and analyze:

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📋 Image-by-image analysis:

| Image | Description | Type | Color |
|------|-------------|------|-------|
| 1 | Scissors cutting paper | Shape change, no new substance | ✔ Physical → Red |
| 2 | Kettle boiling water | Water → steam (phase change) | ✔ Physical → Red |
| 3 | Glass with bubbles (maybe effervescent tablet?) | Bubbles = gas → likely chemical | ✘ Chemical → Blue |
| 4 | Tearing paper | Shape change | ✔ Physical → Red |
| 5 | Bending metal rod | Shape change | ✔ Physical → Red |
| 6 | Ice melting in glass | Solid → liquid | ✔ Physical → Red |
| 7 | Text: "only a shape change" | Hint for physical | ✔ Physical → Red |
| 8 | Frying eggs | Cooking → chemical change (proteins denature) | ✘ Chemical → Blue |
| 9 | Lighted match | Burning → combustion | ✘ Chemical → Blue |
|10 | Whisking eggs | Mixing → physical (if raw) | ✔ Physical → Red |
|11 | Campfire burning logs | Combustion → chemical | ✘ Chemical → Blue |
|12 | Toasting bread | Browning → chemical | ✘ Chemical → Blue |
|13 | Text: "can be reversed" | Clue for physical | ✔ Physical → Red |
|14 | Crushed eggshells | Broken pieces → physical | ✔ Physical → Red |
|15 | Boiling kettle (again?) | Water boiling → physical | ✔ Physical → Red |
|16 | Melting ice cube | Solid → liquid | ✔ Physical → Red |
|17 | Broken toy car | Physical breakage | ✔ Physical → Red |
|18 | Text: "can't be reversed" | Clue for chemical | ✘ Chemical → Blue |
|19 | Spoon stirring drink | Dissolving sugar? → physical | ✔ Physical → Red |
|20 | Text: "a new substance is formed" | Clue for chemical | ✘ Chemical → Blue |
|21 | Banana peel turning brown | Ripening → oxidation → chemical | ✘ Chemical → Blue |
|22 | Fireworks exploding | Explosion → chemical reaction | ✘ Chemical → Blue |
|23 | Flask with bubbling mixture | Reaction occurring → chemical | ✘ Chemical → Blue |

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✔ Final Answer Summary:

Now, assign colors:

#### Physical Changes (Red):
- Cutting paper
- Boiling water (kettle)
- Tearing paper
- Bending metal
- Ice melting
- Whisking eggs (raw)
- "Only a shape change" (hint)
- "Can be reversed" (hint)
- Crushed eggshells
- Boiling kettle (again)
- Melting ice cube
- Broken toy car
- Stirring drink

→ 13 images should be red

#### Chemical Changes (Blue):
- Bubbling glass (effervescent?)
- Frying eggs
- Lighted match
- Campfire
- Toasting bread
- "Can't be reversed" (hint)
- "A new substance is formed" (hint)
- Banana browning
- Fireworks
- Flask with reaction

→ 10 images should be blue

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✔ Final Coloring Guide:

| Cell | Image | Color |
|------|-------|--------|
| 1 | Cut paper | Red |
| 2 | Boiling kettle | Red |
| 3 | Bubbling glass | Blue |
| 4 | Tearing paper | Red |
| 5 | Bend metal | Red |
| 6 | Ice melting | Red |
| 7 | "Only shape change" | Red |
| 8 | Frying eggs | Blue |
| 9 | Match flame | Blue |
|10 | Whisking eggs | Red |
|11 | Campfire | Blue |
|12 | Toasting bread | Blue |
|13 | "Can be reversed" | Red |
|14 | Crushed shells | Red |
|15 | Boiling kettle | Red |
|16 | Melting ice | Red |
|17 | Broken car | Red |
|18 | "Can't be reversed" | Blue |
|19 | Stirring drink | Red |
|20 | "New substance formed" | Blue |
|21 | Banana peel | Blue |
|22 | Fireworks | Blue |
|23 | Flask reaction | Blue |

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✔ Summary of Answers:

- Color in red (physical changes):
- Images: 1, 2, 4, 5, 6, 7, 10, 13, 14, 15, 16, 17, 19

- Color in blue (chemical changes):
- Images: 3, 8, 9, 11, 12, 18, 20, 21, 22, 23

> Note: Image 3 (bubbling glass) could be ambiguous — if it's soda water, it's physical (gas escaping), but if it's a reaction (like Alka-Seltzer), it's chemical. Given the context of the worksheet, and the presence of "new substance" later, likely chemical → Blue

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🟩 Final Answer:

> Color the following in RED (physical changes):
> - Cutting paper
> - Boiling water
> - Tearing paper
> - Bending metal
> - Ice melting
> - Whisking raw eggs
> - "Only a shape change"
> - "Can be reversed"
> - Crushed eggshells
> - Melting ice
> - Broken toy car
> - Stirring drink
>
> Color the following in BLUE (chemical changes):
> - Bubbling glass (reaction)
> - Frying eggs
> - Lit match
> - Campfire
> - Toasting bread
> - "Can't be reversed"
> - "A new substance is formed"
> - Banana browning
> - Fireworks
> - Flask with reaction

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✔ This completes the worksheet. Students should color accordingly based on whether a new substance is formed.