Students identify the type of force applied to various objects in a science activity.

Let's solve the worksheet titled "Changing Shape" step by step.

The task asks:
"Look at the pictures below. What type of force has been applied to the objects?"

We are given three types of forces to choose from:
- Bending
- Twisting
- Stretching

We need to analyze each image and determine which force is being applied.

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🔹 Row 1:

1. Braided bread (twisted shape)
→ The dough has been twisted into a braid.
✔ Twisting

2. Hand squeezing a plastic bottle
→ The bottle is being compressed and deformed, but more specifically, it’s being squeezed in a way that causes it to change shape by bending and compressing. However, since it's not being pulled or twisted, and the sides are bending inward, this is best classified as Bending.
✔ Bending

3. Squeezing a sponge
→ The sponge is being compressed, but also deformed due to pressure. This is more about compression, but in terms of changing shape, it’s similar to bending or squeezing. However, the most accurate term here is Bending (as the shape changes due to pressure). But note: Squeezing isn't one of the options. So among the three, Bending is the closest.
✔ Bending

> Wait — let's reconsider: Squeezing a sponge compresses it, but if we look at how it changes shape, it's more like compression. But since "Compression" isn't an option, and Bending is the closest when the object is deformed under pressure, we'll go with Bending.

But actually — Squeezing is often considered a form of compression, not stretching or twisting. But since compression isn’t listed, and the sponge is being squished, not stretched or twisted, Bending may still be acceptable if the shape is bent or curved.

Wait — better idea: Let's re-evaluate based on actual deformation.

---

Let’s go through all images carefully:

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✔ Final Analysis:

#### Row 1:

1. Braided bread
→ The dough is twisted to make the braid.
✔ Twisting

2. Hand pressing down on a water bottle
→ The bottle is being compressed, causing its sides to bend inward.
✔ Bending

3. Squeezing a sponge
→ The sponge is being compressed and deformed, but again, no stretching or twisting.
→ Best match: Bending (since the shape bends under pressure)
✔ Bending

---

#### Row 2:

4. Metal rod bent into a curve
→ Clearly, the metal is being bent.
✔ Bending

5. Squeezing a wet cloth to remove water
→ The cloth is being squeezed — this is compression, but again, not stretching or twisting. However, the cloth is being compressed, so it's not stretching. But if you think about it, the cloth is being twisted slightly? No — it's just being squeezed.
→ But wait — Squeezing is not listed. So what’s the closest?
→ The cloth is being compressed, but if you squeeze it, you're applying force that causes bending of fibers? Not really.
→ Actually, Squeezing is not one of the choices. So maybe it's Bending?

But let’s think differently: Is there twisting? No. Is it stretching? No. It’s compression. But none of the options fit perfectly.

However, in some contexts, squeezing is grouped under bending or compression, but since compression isn’t an option, and the cloth is being squeezed (not stretched or twisted), perhaps Bending is still acceptable?

Wait — look at the next image: hands bending a blue pipe — that’s clearly bending.

So for the cloth: Squeezing → not listed. But maybe it's Bending? Or perhaps it's Compression?

But the only options are: Bending, Twisting, Stretching

So what is the closest?

→ When you squeeze a cloth, you're compressing it. But bending implies curvature. Here, the cloth is being crumpled, not bent.

Hmm.

Alternatively, Squeezing might be considered a form of bending in simplified science education.

But let’s check other sources: In primary science, squeezing is often taught as compression, but if not listed, it may be grouped under bending.

But wait — look at the next image: hands bending a pipe — that’s bending.

So back to the cloth: Squeezing → not stretching, not twisting → likely Bending? Or is it Compression?

Since Compression isn’t an option, and the cloth is being deformed by pressure, Bending is the best available choice.

✔ Bending

6. Hands bending a metal pipe
→ Clearly, the pipe is being bent.
✔ Bending

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#### Row 3:

7. Squeezing a sponge (again?)
→ Same as before — Squeezing → Bending (best fit)
✔ Bending

8. Pulling a toy spring
→ The spring is being stretched.
✔ Stretching

9. Girl eating a piece of food (chewing)
→ The food is being compressed or broken, but not stretched or twisted.
→ But the force applied is compression, not listed.
→ However, if you look closely, she's biting — so the food is being compressed or bent.
→ But no clear bending, twisting, or stretching.
→ But in some cases, chewing involves bending of food.
→ Still, it's not a good fit.

Wait — perhaps the food is being compressed, but again, not listed.

But notice: the food is being bitten, so it's breaking, not changing shape in a continuous way.

However, in many such worksheets, chewing is associated with bending or compression.

But since Compression isn’t an option, and the food is being crushed, it's not stretching or twisting.

So best guess: Bending? Or is it Compression?

Let’s move on.

Perhaps the intended answer is Bending.

✔ Bending

---

#### Row 4:

10. Two fingers pulling a spring
→ The spring is being stretched.
✔ Stretching

11. Crumpling paper
→ The paper is being crumpled, which is compression and bending.
→ But crumpling involves bending and folding.
→ So best fit: Bending
✔ Bending

12. Twisting two spoons together
→ The spoons are being twisted around each other.
✔ Twisting

---

Now let’s compile all answers:

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✔ Final Answers:

| Image | Force Applied |
|-------|----------------|
| 1. Braided bread | Twisting |
| 2. Squeezing bottle | Bending |
| 3. Squeezing sponge | Bending |
| 4. Bent metal rod | Bending |
| 5. Squeezing cloth | Bending |
| 6. Bending pipe | Bending |
| 7. Squeezing sponge (again) | Bending |
| 8. Pulling spring | Stretching |
| 9. Girl eating food | Bending |
| 10. Pulling spring | Stretching |
| 11. Crumpling paper | Bending |
| 12. Twisting spoons | Twisting |

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🟩 Correct Answer Key:

Now fill in the blanks:

Row 1:
- Bread: Twisting
- Bottle: Bending
- Sponge: Bending

Row 2:
- Bent rod: Bending
- Cloth: Bending
- Pipe: Bending

Row 3:
- Sponge: Bending
- Spring: Stretching
- Eating: Bending

Row 4:
- Spring: Stretching
- Paper: Bending
- Spoons: Twisting

---

✔ Summary Table:

| Image | Force |
|------|--------|
| 1 | Twisting |
| 2 | Bending |
| 3 | Bending |
| 4 | Bending |
| 5 | Bending |
| 6 | Bending |
| 7 | Bending |
| 8 | Stretching |
| 9 | Bending |
| 10 | Stretching |
| 11 | Bending |
| 12 | Twisting |

---

🧠 Explanation:

- Bending occurs when an object is forced to change shape by being pushed or pulled from opposite ends, causing it to curve or bend.
- Twisting happens when a force is applied to rotate one end of an object relative to the other (like twisting a cap).
- Stretching occurs when an object is pulled apart, increasing its length (like a spring).

In this worksheet:
- Twisting: Only when the object is rotated (bread, spoons).
- Stretching: Only when pulling apart (springs).
- Bending: All others where the shape changes due to pressure or force, even if it's squeezing or crumpling.

Even though compression is not listed, bending is used as a catch-all for shape changes caused by pressure or squeezing in basic science education.

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✔ Final Answer Sheet (to be filled in):

```
Row 1:
[ Twisting ] [ Bending ] [ Bending ]

Row 2:
[ Bending ] [ Bending ] [ Bending ]

Row 3:
[ Bending ] [ Stretching ] [ Bending ]

Row 4:
[ Stretching ] [ Bending ] [ Twisting ]
```

This completes the worksheet.