How do materials that float differ from materials that sink?

Answer:
The ones which float have a lower density than water, whereas those which sink have a higher density than water. However, also the shape the material is in influences whether it sinks or floats.
First answer by GodsOfWarMayCry. Last edit by GodsOfWarMayCry. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 1 [recommend question].