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
The density of the rock can be directly determined when the rock is placed in an overflow container. By measuring the amount of water displaced by the rock, its volume can be calculated, and then by dividing the mass of the rock by its volume, the density can be determined.
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.
The volume of a solid object such as a rock or pebble can be determined by submerging it in a liquid in a graduated cylinder or other container. The difference in the volume of the liquid is the volume of the object.
You would determine the volume of water it displaces and measure it.
Mass and volume are not determined by density. Rather density is determined by mass and volume
The formula for figuring out rock would depend on the specific property you are trying to calculate, such as volume, density, weight, or composition. Each property would require a different formula. For example, the formula for calculating the volume of a rock could be determined using geometry formulas such as V = (4/3)πr^3 for a spherical rock.
The density of the rock is calculated by dividing its mass (56 grams) by its volume. If the volume is unknown, then the density cannot be determined. Density is the mass per unit volume of a substance, so both mass and volume need to be known to calculate it.
The answer depnds on the density of each rock. If they are different denities thenthere is a chance that the 1mL rock may have more mass. If they have the same density then the 4mL rock will have more mass
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.
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.
Maybe the surface and I don't get this questions and I don't know if it's right or not I need help :(
To calculate density, you need to divide the mass of the rock by its volume. In this case, the density of the rock would be 12g divided by its volume in cm^3. Without knowing the volume in cm^3, it is not possible to determine the density of the rock.