Physical Or Chemical Change Worksheet - Free Printable

Let's solve this "Physical and Chemical Changes" worksheet step by step.

🔍 Objective:

- Color physical changes in red
- Color chemical changes in blue

We need to identify whether each image represents a physical change or a chemical change, based on the definitions:

---

✔ Definitions:

- Physical Change:
- No new substance is formed
- Only a shape or state changes
- Can usually be reversed

- Chemical Change:
- A new substance is formed
- Often involves color change, gas production, heat/light, etc.
- Usually cannot be reversed

---

Now let’s go through each cell in the chart:

---

#### 🔹 Row 1 (Top row):

1. Scissors cutting paper → Shape change, no new substance → Physical → ✔ Red
2. Steam from kettle → Water evaporating (state change) → Physical → ✔ Red
3. Canned food → No change shown; just stored → Not changing → But if it’s *just* sitting, no reaction → Assume Physical → ✔ Red
4. Tearing paper → Only shape change → Physical → ✔ Red

---

#### 🔹 Row 2:

5. Breaking a magnet → Still magnetic pieces, same material → Physical → ✔ Red
6. Mixture of rocks in glass → Just mixed, no reaction → Physical → ✔ Red
7. Magnifying glass showing magnification → No change in substance → Physical → ✔ Red
8. Lighting a match → Flame, combustion → New substances (CO₂, ash), heat & light → Chemical → ✔ Blue

---

#### 🔹 Row 3:

9. Mixing ingredients in bowl → If just mixing (e.g., flour + water), no reaction → Physical → ✔ Red
*(But if it's baking, it could be chemical — but here it's just stirring, so likely physical)*
10. Burning wood (fire) → Combustion → New substances → Chemical → ✔ Blue
11. Cutting bread → Shape change → Physical → ✔ Red
12. Crushed can → Shape change → Physical → ✔ Red

---

#### 🔹 Row 4:

13. Melting ice cube → State change (solid to liquid) → Physical → ✔ Red
14. Boiling water in kettle → Phase change → Physical → ✔ Red
15. Cutting cheese → Shape change → Physical → ✔ Red
16. Rusting metal → Iron + oxygen → rust (new substance) → Chemical → ✔ Blue

---

#### 🔹 Row 5:

17. Dissolving sugar in water → Sugar molecules dispersed, no new substance → Physical → ✔ Red
18. Banana turning brown → Oxidation (enzymatic browning) → New substances → Chemical → ✔ Blue
19. Fireworks exploding → Explosion, new substances, light, sound → Chemical → ✔ Blue
20. Gas escaping from flask → Could be decomposition or reaction → Gas release = Chemical → ✔ Blue

---

🎯 Summary: Which are Physical vs. Chemical?

| Image | Description | Type | Color |
|------|-------------|------|-------|
| 1 | Cutting paper | Physical | Red |
| 2 | Steam from kettle | Physical | Red |
| 3 | Canned food | Physical | Red |
| 4 | Tearing paper | Physical | Red |
| 5 | Breaking magnet | Physical | Red |
| 6 | Rocks in glass | Physical | Red |
| 7 | Magnifying glass | Physical | Red |
| 8 | Lighting match | Chemical | Blue |
| 9 | Mixing in bowl | Physical | Red |
| 10 | Burning wood | Chemical | Blue |
| 11 | Cutting bread | Physical | Red |
| 12 | Crushed can | Physical | Red |
| 13 | Melting ice | Physical | Red |
| 14 | Boiling water | Physical | Red |
| 15 | Cutting cheese | Physical | Red |
| 16 | Rusting metal | Chemical | Blue |
| 17 | Dissolving sugar | Physical | Red |
| 18 | Banana browning | Chemical | Blue |
| 19 | Fireworks | Chemical | Blue |
| 20 | Gas from flask | Chemical | Blue |

---

✔ Final Answer:

- Color in RED (Physical Changes):
All except #8, #10, #16, #18, #19, #20

- Color in BLUE (Chemical Changes):
#8 (match), #10 (fire), #16 (rust), #18 (banana), #19 (fireworks), #20 (gas)

---

💡 Tips for Students:

- Look for clues like:
- "New substance formed?" → Chemical
- "Can’t be reversed?" → Likely chemical
- "Only shape changed?" → Physical
- "Reversible?" → Physical (like melting ice)

This helps reinforce understanding of the difference between physical and chemical changes.

Let me know if you'd like a printable version with colors marked!