Mass refers to how heavy something is. We use grams (g) for light things, especially things you can easily hold in your hand, kilograms (kg) for heavier everyday items things you can lift or carry, but they have a bit of weight, and tonnes (t) for really heavy things like cars and trucks!
Drag each object to the box that best matches its weight.
Light objects like feathers or paperclips
Everyday items like bags or fruit
Very heavy items like trucks or elephants
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