Let's go through each item in the "Estimating Capacity" worksheet and determine a
sensible estimate of its capacity based on real-world knowledge.
---
1. Watering can
- Options:
- ☐ 4 ml
- ☑
4 litres
- ☐ 40 ml
✔ Answer: 4 litres
➡️ A typical watering can holds several litres, usually around 3–5 litres. 4 litres is reasonable.
---
2. Bath
- Options:
- ☐ 1 litre
- ☐ 150 ml
- ☑
150 litres
✔ Answer: 150 litres
➡️ A standard bathtub holds about 100–200 litres. 150 litres is a sensible estimate.
---
3. Cereal bowl
- Options:
- ☐ 500 ml
- ☐ 10 ml
- ☑
5 litres ✘ Wait — this seems off! Let’s reconsider.
Wait —
5 litres is way too big for a cereal bowl. A cereal bowl typically holds about
250–500 ml. But
500 ml is listed, and
5 litres is not realistic.
So:
- ☑
500 ml
- ☐ 10 ml
- ☐ 5 litres
✔ Answer: 500 ml
➡️ A cereal bowl is about half a litre (500 ml). 5 litres would be like a bucket!
---
4. Can of soup
- Options:
- ☐ 20 ml
- ☑
400 ml
- ☐ 1 litre
✔ Answer: 400 ml
➡️ Standard soup cans are usually 400 ml or 420 ml. 1 litre is too large for a single can.
---
5. Mug
- Options:
- ☐ 20 ml
- ☑
250 ml
- ☐ 2 litres
✔ Answer: 250 ml
➡️ A regular coffee or tea mug holds about 250 ml (a quarter of a litre). 2 litres is more than a jug!
---
6. Teaspoon
- Options:
- ☐ 250 ml
- ☐ 50 ml
- ☑
5 ml
✔ Answer: 5 ml
➡️ A teaspoon holds about 5 ml. That’s standard in cooking measurements.
---
7. Kettle
- Options:
- ☐ 2 ml
- ☑
2 litres
- ☐ 20 litres
✔ Answer: 2 litres
➡️ A typical household kettle holds around 1.5 to 2 litres. 20 litres would be huge!
---
8. Swimming pool
- Options:
- ☐ 4 litres
- ☐ 400 litres
- ☑
400 000 litres
✔ Answer: 400 000 litres
➡️ A small swimming pool (like a family-sized one) holds hundreds of thousands of litres. 400,000 litres = 400 cubic metres, which is realistic for a small pool.
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✔ Final Answers (Tick the correct ones):
| Item | Correct Estimate |
|------------------|-----------------------|
| Watering can | 4 litres |
| Bath | 150 litres |
| Cereal bowl | 500 ml |
| Can of soup | 400 ml |
| Mug | 250 ml |
| Teaspoon | 5 ml |
| Kettle | 2 litres |
| Swimming pool | 400 000 litres |
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🔍 Summary of Reasoning:
- Use
real-life experience and
common measurements.
- Remember:
-
ml (millilitres) → small amounts (teaspoons, drinks)
-
litres → larger containers (kettles, baths)
-
1000 ml = 1 litre
This helps you make logical estimates.
Let me know if you'd like a printable version with ticks marked!
Parent Tip: Review the logic above to help your child master the concept of estimating capacity worksheet.
