### What isntrument is used to measure the metric unit of density?

There are many different sophisticated methods for measuring density but they all revolve aroud the equation of Density = Mass/Volume. To find the density you need to ascertain the item's mass (weight) in grams and it's volume (how much space it consumes). The simplest method for determining volume of an irregular solid object is to submerge the object in a liquid and measure the change in water level in milliliters. This can be done with…

### Why is water displacement important?

It is a very easy way of determining the volume of a small object. For example, if you have a marble and want to know the mass, all you have to do is put 5ml of water in a graduated cylinder, then put in the marble, and read it. It will say something like 8ml, so 8ml-5ml= 3ml volume of marble. Easy, right?

### How would you find the volume of woodchips?

Put it in a gratuated cilender and see how much of the water went up. For example, if I put a 3cm sphere in a gratuated cylinder, where the water is marked 50ml, the water will go up 3ml, equaling 53ml. In other terms, water displacement is used to find the volume of iregular shaped objects. Plus, a milileter (ml) is equel in volume to a centimeter (cm).