I would use a large, graduated measuring jug for this.
I would use a large, graduated measuring jug for this.
Please specify what you want to measure about the bucket, for example its height, width, circumference, volume, color, albedo, etc.
pounds
You would use a tape measure.
You would use Volume.
volume
You would typically use liters or gallons to measure the volume of a hot tub.
The density of a substance is the ratio of its mass to its volume. So, I would measure the mass and volume of a substance to calculate density.
since you're probably talking about the volume of water in the bucket, you could use either ml or liters (1 liter is 1000 ml), grams are a measure of weight and meters measure length.
You would use liters (L) to measure the volume of a soda container in the metric system.
liquid volume
This volume can be measured in millilitres.
In general it is very difficult. The displacement method, often given as the answer does not always work. The displacement method will work only if the object is reasonably small and you can find a liquid in which it is not soluble and in which it will sink. For small objects, pour some liquid into a calibrated measuring jar and read off the volume. Then you submerge the object and read off the new volume. The difference between the two measures is the volume of the object. For larger objects, it is easier to use two containers: for example a bucket placed in a basin. Completely fill the bucket. Very gently lower the object into the liquid in the bucket. Then carefully remove the bucket and measure the liquid that overflowed from the bucket into the basin. This will equal the volume of the object.