Answer: it's easy just think about it:
Explanation:
weight: the weight of an object is the force acting on the object due to gravity.
mass: Mass is the amount of matter or substance that makes up an object.
in total: The mass of an object is a measure of the object's inertial property, or the amount of matter it contains. The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it.
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Substances that are less dense than water will FLOAT and substances with a density that is greater than 1.00g/ml will SINK.
The bucket with lead added would replace more water, as it would require more volume to achieve the same mass.