Hi! I'm Vidi. Let's learn Measurement: Mass & Capacity together — read with me, then play the games to win a ⭐!
🔵Mass — Grams & Kilograms
Mass tells how heavy something is. We measure it in grams (g) and kilograms (kg).
- A small thing (a chocolate) is measured in grams.
- A heavy thing (a school bag, a watermelon) is measured in kilograms.
- 1 kg = 1000 g
We weigh things on a balance or a weighing scale.
👀 See a worked example
Which unit weighs a watermelon — grams or kilograms?
Kilograms — a watermelon is heavy.
How many grams in 2 kg?
2 × 1000 = 2000 g.
🤖 Vidi's Key Points
- Mass is how heavy something is, measured in grams (g) and kilograms (kg).
- 1 kg = 1000 g.
- Use grams for light things, kilograms for heavy things.
🟢Capacity — Millilitres & Litres
Capacity tells how much liquid a container can hold. We measure it in millilitres (ml) and litres (L).
- A spoon or a glass holds a few millilitres.
- A bottle or a bucket holds litres.
- 1 litre = 1000 ml
👀 See a worked example
Which holds more — a bucket or a cup?
A bucket holds much more (litres) than a cup.
How many ml in 2 litres?
2 × 1000 = 2000 ml.
🤖 Vidi's Key Points
- Capacity is how much a container holds, measured in ml and litres.
- 1 litre = 1000 ml.
- Use ml for small amounts, litres for big amounts.
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