Which is heavier: 1kg of flour or 1kg of steel?
A kilogram (kg) is a unit of weight, so it doesn't matter what material is being weighed - a kilogram will always be equal to a kilogram. Therefore, both weigh the same.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: Which is heavier: 1kg of flour or 1kg of steel?
### Input: 
### Response: A kilogram (kg) is a unit of weight, so it doesn't matter what material is being weighed - a kilogram will always be equal to a kilogram. Therefore, both weigh the same.</s>