Question

part 5: identify the separation method

1. separating sand from water:
2. separating salt from saltwater:
3. separating oil and water using boiling points:
4. separating metal paper clips from rice:

Explanation:

1. Separating sand from water

Sand is insoluble in water and has larger particles. Filtration uses a filter medium (like filter paper) to retain solid particles (sand) while allowing the liquid (water) to pass through.

Salt (sodium chloride) is soluble in water. Evaporation involves heating the saltwater to turn the water into vapor, leaving the solid salt behind as the water evaporates.

Oil and water have different boiling points. Distillation is a process that separates components of a mixture based on differences in their boiling points. By heating the mixture, the component with the lower boiling point (water, if we consider typical boiling points of oil and water) will vaporize first, and then be condensed and collected separately from the oil.

Answer:

Filtration

2. Separating salt from saltwater