🥛 What is Capacity?
Capacity is the amount of liquid a container can hold. In Canada, we use millilitres and litres to measure capacity.
🧪 Millilitres (mL) – Small Amounts
Examples of millilitres:
• A teaspoon ≈ 5 mL
• A small juice box ≈ 200–250 mL
• A bottle of water ≈ 500 mL
• A medicine spoon ≈ 10 mL
🛢️ Litres (L) – Larger Amounts
Examples of litres:
• A carton of milk = 1 L or 2 L
• A big bottle of water ≈ 4 L
• A swimming pool holds thousands of litres
• The gas tank of a car holds about 50–60 litres
🔄 Important Relationship
1 Litre (L) = 1,000 Millilitres (mL)
Just like 1 kilogram = 1,000 grams
✏️ Let’s Practice Together, My Dear Student!
Practice 1: Choose the Best Unit
1. A glass of water → millilitres
2. A bathtub → litres
3. A spoon of medicine → millilitres
Practice 2: Conversions
1. 2,000 mL = 2 L
2. 500 mL = 0.5 L
3. 3.5 L = 3,500 mL
4. 750 mL = 0.75 L
Practice 3: Word Problems (Canadian Style)
1. A juice bottle holds 1.5 litres. How many millilitres is that?
1,500 mL
2. You drank 250 mL of milk in the morning and 400 mL in the evening. How much milk did you drink in total? Give your answer in litres.
650 mL = 0.65 L
Challenge Question
A big water bottle holds 4 litres. You pour out 1,750 mL. How much water is left in the bottle?
4 L - 1.75 L = 2.25 L
Fantastic Job, My Dear Student! 🎉
You now understand millilitres and litres very well! You can measure liquids, convert between the two units, and solve real-life problems.
I am so proud of you for completing the capacity part of measurement. Next time you pour juice or milk, notice how much is in the container!
💕 You are smart. You are kind. You can do hard things.
When you are ready, tell me the next topic (Perimeter, Area, Temperature, or anything else) and I will create another beautiful lesson just for you!