(a) Barry wanted to determine the density of a small piece of rock.
Describe how Barry could measure the volume of the piece of rock.
(b) The volume of the piece of rock was 18.0 cm3.
Barry measured the mass of the piece of rock as 48.6 g.
Calculate the density of the rock.
(c) The bar chart shows the densities of different types of rock.
What type is the rock Barry investigate most likely to be?
[Total: 10 marks]