A hippopotamus has a mass of 2000 kilograms., A trundle wheel is used to measure the length of an ant., The width of a soccer goal is a little more than 700 centimetres., A train carriage has a mass of 6000 tonnes., The smallest bird in the world is 50 centimetres long., A kitchen scale is used to measure the mass of a fridge., The tallest football player is 2000 millimetres tall., The mass of a grasshopper is 1000 grams., An emu egg has a mass of 1/2 kg.,

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