Question

Which would be the best tools to measure the density of a small piece of silver ore?

Answer 1

So, let's go trough all the options:

A can't be the answer because a barometer is an instrument to measure atmospheric pressure, not density.

B seems like the answer but it's not. A density probe is used to measure density, temperature and level of fuel in the car, and not density of an object.

C is the answer, but it doesn't give you the answer directly. *

* We know that the formula of density is:

$\bf~Density = \frac{Mass}{Volume}$

→ By putting the piece of ore inside the graduated cylinder with water, we can measure the ore's volume and by putting it on a balance, we can measure its mass and that is all we need to find it's density.

Hope it helped,

BioTeacher101

(If you have any questions, feel free to ask them in the comments)