Volume

Volume is the amount of space that takes up. Volume of liquids means how much liquid is inside the beaker/ container/ graduated cylinder/ etc. To measure a small amount of liquid, you use litters. But to measure even smaller amount of liquid, you use milliliters. When you are pouring liquid into the graduated cylinder or other things, you would have a little bubble on top that's called a meniscus. In order to read how much liquid there is, you need to read the bottom of the meniscus.