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Fill a graduated cylinder with water.
Record the amount. Let's say this amount is X.
Drop the rock in.
Record the new amount. This amount is Y.
Now subract X from Y.
So it should look like this:
Y-X=Z
Z is your answer.
This is called the Water Displacement Method.
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∙ 13y ago
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Is multiplying the length x width x height a good method to find the volume of a rock?
No. I say this because a rock is usually circular and not a perfect figure. :-)
Can a rocks volume be 250 mL?
Yes. It would be hard to find a rock with that volume, but I'm sure there is one out there.
How do I find the volume of a rock?
Irregularly shaped objects have no formula for finding the volume. So, to find the volume of a rock, one method is to measure how much water the rock displaces. You simply need some sort of container that measures the volume of liquids and you need some water. The container should be large enough to put the rock in. First, fill the container to a certain volume, noting what that volume is and making sure that enough water is used to completely cover the rock when you put the rock in the container. Next place the rock into the container and measure the new volume indicated by the water. Subtract this new volume with the old volume, and the answer will be the volume of the rock. Another method is to use the rock's mass and density to calculate the volume. This can be tougher because you might not know what type of rock you have and many rocks are composites of different types of rocks. Some internet websites give the densities of different rocks. The website http://www.earthsci.unimelb.edu.au/ES304/MODULES/GRAV/NOTES/densities.html gives some simple densities. But if you have all this information, the volume can be determined by measuring the mass of the rock and dividing that number by the density.
How is the mass of a rock measured?
You put it on a scale or a triple-beam balance. It'll give you the mass. However, if you have the density of the rock, divide it by the volume to find the mass mathematically. You can also find the volume by the water displacement method, where you placed the rock in a graduated cylinder/beaker filled partially with water and record the difference between the original water level and the raised water level after placing the rock inside the container.
How can the volume of a irregularly shaped rock be measured?
One way would be to get a container into which you could put the rock completely, fill it to the brim with water (without the rock in it), then put the rock in and measure the volume of the water that flowed out.
How do you find the volume of an odd size rock?
The volume of an odd size rock can be obtained through methods like displacement method.
What did Archimedes find?
He discovered the method to calculate the volume of a irregular object (rock).
How can you find the density of a rock or key?
Find the mass using a scale. Find the volume by the water displacement method. Divide mass by volume and that equals density.
How would you determined the volume of the rock?
For complex shapes finding the volume is quite difficult. You could do it one of three ways: Simplify the rock's shape, say as a sphere, then use 4/3(pi)(radius^3) to find the volume. Or you could integrate the surface area. I suggest you look up how to do this, since it cannot be easy taught. If you are looking for a simple answer, stick with the first method. Another method is, if you know the density of the rock you can weigh it and find the volume using: mass/density = volume
Describe a method that the student could use to find the volume of this rock?
You can find the volume of a small rock in no time at all. Just fill up a container that is marked by volume with water and record the volume. Then drop the small rock inside the container. Record the new volume. Find the difference between the new and old volumes. This is the volume of the small rock. You could do this in any liquid.
Is multiplying the length x width x height a good method to find the volume of a rock?
No. I say this because a rock is usually circular and not a perfect figure. :-)
How would you use your calibrated bottle to find the volume of the rock?
Place a specific amount of water in your bottle. Record the volume. Place the rock in the bottle. Read and record the new volume of water. Subtract the first volume measurement from the measurement after you added the rock. The difference is the volume of the rock.
Can a rocks volume be 250 mL?
Yes. It would be hard to find a rock with that volume, but I'm sure there is one out there.
How would you find the volume of an irregular shaped object like a rock?
You would measure the length width and heighth. Then you would multiply them all together. <><><> A better means would be to have a container that the rock will fit in, and fill it full of water. Place the rock in the container, which will overflow. Then remove the rock, and measure the volume of water you have to pour into the container to make it full again. The volume of the water will equal the volume that was displaced by the rock.
Why is the graduated cylinder used instead of a ruler to measure the volume of a rock?
Because most rocks are not made up of common geometric shapes, it would be difficult or impossible to find the volume of a rock using a ruler; there would be no easy way to measure the rock's irregular volume. However, by measuring the volume of liquid a rock displaces, its volume can easily be determined.
How do you find out the volume of a rock?
Height times width times length equals the volume of the rock.
How do I find the volume of a rock?
Irregularly shaped objects have no formula for finding the volume. So, to find the volume of a rock, one method is to measure how much water the rock displaces. You simply need some sort of container that measures the volume of liquids and you need some water. The container should be large enough to put the rock in. First, fill the container to a certain volume, noting what that volume is and making sure that enough water is used to completely cover the rock when you put the rock in the container. Next place the rock into the container and measure the new volume indicated by the water. Subtract this new volume with the old volume, and the answer will be the volume of the rock. Another method is to use the rock's mass and density to calculate the volume. This can be tougher because you might not know what type of rock you have and many rocks are composites of different types of rocks. Some internet websites give the densities of different rocks. The website http://www.earthsci.unimelb.edu.au/ES304/MODULES/GRAV/NOTES/densities.html gives some simple densities. But if you have all this information, the volume can be determined by measuring the mass of the rock and dividing that number by the density.
