After a heavy rain, a group of students collected a sample of water from a nearby puddle. They observed that the water was cloudy and had some fine particles suspended in it. When they left the sample undisturbed for an hour, they noticed that some of the particles settled at the bottom of the container. When they tried to pass a beam of light through the sample, the path of light was visible. i. What type of mixture is the puddle water sample (solution, suspension, or colloid)? Give reasons for your answer based on the observations. ii. What would happen to the visibility of the light beam if the students filtered the sample and then passed the light through the filtrate? iii. Is the puddle water a pure substance or a mixture? Explain. iv. How could the students separate the suspended particles from the water?