- If something is insoluble in something , then they will remain separated
- Sand is insoluble in water
- Therefore, sand will remain separated from water

- Sand will remain separated from water
- Denser particles in liquids settle below liquids that are less dense
- Sand is denser than water
- So, sand in water settles to the bottom of water

Therefore, sand in water settles to the bottom of water
Q: A student stirred some sand into a container of water and left the mixture alone for several hours until the sand settled on the bottom of the container. Which statement best explains why the sand separated from the water?
Context:
- Denser particles in liquids settle below liquids that are less dense 
- Sand is denser than water 
- If something is insoluble in something , then they will remain separated 
- Sand is insoluble in water