Let's solve the
"Estimating Capacities" worksheet step by step. The goal is to
tick the better estimate for the capacity of each object, choosing between two options — one in milliliters (ml) and one in liters (L). Remember:
-
1 liter (L) = 1000 milliliters (ml)
- So,
ml is used for small amounts (like a cup or bottle), and
L is used for larger volumes (like a bucket or container).
---
🔹 1. Baby Bottle
- Options:
250 ml or
250 L
- A baby bottle holds a small amount of milk.
-
250 L is huge — that’s like a small swimming pool!
-
✔ Better estimate: 250 ml
---
🔹 2. Ketchup Bottle
- Options:
300 ml or
300 L
- A typical ketchup bottle is about the size of a small juice bottle.
-
300 L is way too big — that’s more than a bathtub!
-
✔ Better estimate: 300 ml
---
🔹 3. Water Bottle
- Options:
1 ml or
1 L
- A standard plastic water bottle holds about 500 ml to 1 L.
-
1 ml is just a teaspoon — too small.
-
✔ Better estimate: 1 L
---
🔹 4. Watering Can
- Options:
3 L or
3 ml
- A watering can holds several liters of water.
-
3 ml is less than a teaspoon — far too small.
-
✔ Better estimate: 3 L
---
🔹 5. Soda Can
- Options:
150 ml or
150 L
- A regular soda can is about 330 ml, but
150 ml is close enough for estimation.
-
150 L is enormous — that’s over 100 gallons!
-
✔ Better estimate: 150 ml
---
🔹 6. Coffee Mug
- Options:
100 ml or
100 L
- A mug typically holds around 200–300 ml, so
100 ml is a bit small but reasonable as an estimate.
-
100 L is absurd — that’s a large barrel!
-
✔ Better estimate: 100 ml
---
✔ Final Answers:
| Object | Better Estimate |
|------------------|------------------|
| Baby Bottle | 250 ml |
| Ketchup Bottle | 300 ml |
| Water Bottle | 1 L |
| Watering Can | 3 L |
| Soda Can | 150 ml |
| Coffee Mug | 100 ml |
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✔ Tick these boxes on the worksheet:
- 250 ml (baby bottle)
- 300 ml (ketchup)
- 1 L (water bottle)
- 3 L (watering can)
- 150 ml (soda can)
- 100 ml (mug)
This helps children understand real-life sizes and use appropriate units (ml vs L). 🌟
Parent Tip: Review the logic above to help your child master the concept of capacity measurement worksheet grade 3.
