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Fill the can to the overflow level with water.Very gently lower the irregular solid into the can and make sure to catch all the overflow.Measure the volume of overflow.That is the same as the volume of the irregular solid.Warning! This method will be a total disaster if the solid is soluble in water. You could try any other liquid instead.
The volumes of small irregular solids are usually easily measured by measuring the volume of fluid displaced when they are immersed in a liquid. For example: You would have to put the object in a measuring glass with water in it. (~1/3 filled) Put the object in it and then get the number from the measuring glass (beaker etc. mostly beaker) and that is how you measure a irregular solid!
Because, from Archimedes' Principle, the volume of the water displaced is equal to the volume of the object displacing it. So, were you to collect all the displaced water and put it into a graduated cylinder, it would tell you the volume of the object in question.
I would place it in a container full of liquid after measuring the liquid. I would measure the amount of liquid displaced by the object. That amount is equal to the volume of the irregular object if it is fully submerged in the liquid.
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You place it in water to see the volume of water it displaces. Fill a large, graduated measuring cylinder to about halfway with water (say to 50mL) Put the irregular solid in, and measure the volume it reads (solid + water). (say it reads 80mL) So the volume of the irregular solid will be: volume(solid+water) - volume(water). For example, the volume of the water was 50mL, and when the solid was added, the volume increased to 80mL. The volume of the solid would be 80mL - 50mL. So it would be 30mL.
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Fill the can to the overflow level with water.Very gently lower the irregular solid into the can and make sure to catch all the overflow.Measure the volume of overflow.That is the same as the volume of the irregular solid.Warning! This method will be a total disaster if the solid is soluble in water. You could try any other liquid instead.
So that the irregular solid isn't wet when you place it on the balance, since that would make it appear to have a greater mass than it actually does.
When you are measureing smaller units you would use mL
The volumes of small irregular solids are usually easily measured by measuring the volume of fluid displaced when they are immersed in a liquid. For example: You would have to put the object in a measuring glass with water in it. (~1/3 filled) Put the object in it and then get the number from the measuring glass (beaker etc. mostly beaker) and that is how you measure a irregular solid!
Fill the can with a liquid to the top so it almost overflows. Put the solid in the can and catch the overflowing liquid. Measure the liquid. The measurement of the liquid will give you the volumn of the solid.
If you submerge the object in a volumetrically-labeled beaker, the volume of water displaced (how much the water rises when the object is submerged), is the volume of the object.Either a graduated cylinder or overflow can is used to measure the volume of an irregular solid by water displacement.
Volume is measured in any cubic unit, such as cubic meter, cubic decimeter (also known as liter) or cubic centimeter (also known as milliliter).
The fact that a solid is irregular has nothing to do with which unit you pick. It is the size of the object which determines this. If it is the size of a room you might use metres cubed, but if it would fit in your pocket then centimetres cubed will be more appropriate. It is the method of measuring the volume which is affected by the irregularity. You can't do it with measuring and geometry, so you have to use the displacement of water.