For what? Complete the question.
They need to determine the amount of radioactive decay of a specific isotope in the rock since its formation.
To determine the concentration of a solution, you would need to separate the solution. You then determine how much of the solution is diluted, and how much is whole.
A measuring jug is all you need for the volume and a mass balance is needed to determine mass.
how much 1" rock will I need to fill in a hole 20' long, 2' wide' and about 2' deep
You could weigh it. You can also determine its density by comparing it to an equal volume of water, but first you would have to determine how much water it displaces to determine its volume.
Height
Need velocity to determine.
In order to determine how much household insurance you need, you first need to determine the value of your home, and the personal belongings you have in it. You can get an insurance agent to help you with it.
Determine its volume by how much water it displaces, then divide mass by volume
The composition of the rock will determine whether it is a rhyolite or an andesite.
You will need about 8 trucks of lime rock.
If the rock contains organic material, they can use carbon dating to find out how much carbon is left to determine the age.