Weight is how heavy an object is. Our standard forms of weight are grams (g), kilograms (kg) and tonnes (t). Most people use a scale or a balance scale to measure the weight of something.
Estimating is when people take a guess using their prior knowledge.
Converting is changing a form of something. To convert grams to kilograms people divide by one thousand and then divide one more thousand to convert to tonnes.
LI: To explore standard forms of weight
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