How could I determine if one rock is denser than another rock?
You must be undergoing an identity crisis. You've posted six chemistry questions, using three different names.
Please keep the same user name for Jiskha posts.
Weigh each rock and record the weight. Drop each rock (I assume these are small and not boulders) into a graduated cylinder partially filled with water. Read the two levels of water in the graduated cylinder (before dropping in the rock and after dropping in the rock) and subtract them. This gives the volume in cc. Then mass/volume = density.
If you do have boulders, and you are allowed to deface them, chisel a piece from each and subject each to the above test.
To determine if one rock is denser than another rock, you can follow these steps:
1. Gather the necessary materials: You will need the two rocks you want to compare, a balance or scale that can measure weight in grams or kilograms, and a measuring container that can hold water.
2. Weigh the first rock: Use the balance or scale to measure the weight of the first rock. Make sure to record the weight in grams or kilograms.
3. Find the volume of the first rock: Fill the measuring container with water, enough to completely submerge the first rock. Note the initial water level, then carefully place the rock in the container, ensuring that it is fully submerged. Measure the change in water level and record it.
4. Calculate the volume of the first rock: The volume of the rock can be calculated by subtracting the initial water level from the final water level. This will give you the volume of water displaced by the rock.
5. Repeat steps 2-4 for the second rock: Weigh the second rock, find its volume by water displacement, and record the values.
6. Calculate the density of each rock: Density is determined by dividing the mass of an object by its volume. Calculate the density of the first rock by dividing its weight (mass) by the volume you calculated. Repeat the same calculation for the second rock.
7. Compare the densities: Compare the densities of the two rocks. The rock with the greater density will be denser than the other rock.
By following these steps, you can determine which rock is denser by comparing their densities.