Metric units of capacity worksheets| Worsheets library - Free Printable

Let's solve the worksheet titled "Metric units of capacity: milliliters & liters" for Grade 4. The task is to select the appropriate measurement unit (milliliters or liters) for each item listed.

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🔍 Understanding the Units:

- Milliliters (mL): Used for small amounts of liquid (e.g., medicine, a small drink).
- Liters (L): Used for larger amounts (e.g., a bottle of water, a pitcher).

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Now, let’s go through each question and choose the correct unit:

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1. Capacity of a juice box
- A typical juice box holds about 200–250 mL.
✔ Answer: a. milliliters

2. Capacity of a measuring cup
- A standard measuring cup holds around 250 mL or 1 liter (depending on size). But commonly used for smaller measurements like 1/4 cup, 1/2 cup, etc.
- Most common measuring cups are marked in milliliters or cups, but since we're choosing between mL and L, and a single cup is usually under 1 liter, it's more precise in milliliters.
✔ Answer: a. milliliters

3. Capacity of a wine glass
- A wine glass holds about 150–250 mL.
✔ Answer: a. milliliters

4. Capacity of a pitcher
- A pitcher typically holds 1–2 liters (e.g., a water pitcher).
✔ Answer: b. liters

5. Capacity of a mug
- A coffee mug holds about 250–350 mL.
✔ Answer: a. milliliters

6. Capacity of a swimming pool
- A swimming pool holds thousands of liters (e.g., 10,000 to 100,000+ liters).
✔ Answer: b. liters

7. Capacity of a bathtub
- A bathtub holds about 40–80 liters.
✔ Answer: b. liters

8. Capacity of a fridge
- This one might be tricky. We’re talking about capacity — how much liquid it can hold? But a fridge is not meant to hold liquids. However, if referring to internal volume, it's measured in liters (e.g., a 300-liter fridge).
- Since the context is metric units of capacity, and fridges are rated by internal volume in liters, this is likely referring to that.
✔ Answer: b. liters

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✔ Final Answers:

1. a. milliliters
2. a. milliliters
3. a. milliliters
4. b. liters
5. a. milliliters
6. b. liters
7. b. liters
8. b. liters

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📝 Summary:

- Use milliliters for small containers (juice boxes, glasses, mugs, measuring cups).
- Use liters for larger containers (pitchers, bathtubs, pools, fridges).

This helps students understand real-world applications of metric units.

Let me know if you'd like this turned into a printable answer key!