Final answer:
To distinguish between Atlantic Ocean water and Lake Superior water without tasting, observe clarity, examine under a microscope, test pH levels, and filter each sample to detect dissolved substances, particles, and minerals, all of which can reveal the water's origin.
Step-by-step explanation:
To differentiate between water from the Atlantic Ocean and water from Lake Superior without tasting them, you can perform several observations and tests:
- Visual Inspection: Observe the clarity of each water sample. Check if the water is clear or cloudy.
- Microscopy: Examine each water sample under a microscope to see if there are any dissolved particles or other substances in the water.
- pH Testing: Test the pH of each of the water samples to detect variations in acidity or alkalinity that could indicate the origin of the water.
- Filtration: Pour some of the water from each sample through filter paper and observe if there is sand or other particles on it.
Record your observations at each step. You might see a difference in clarity or the presence of microscopic organisms. The pH levels may also differ, with ocean water typically being more saline and slightly basic. After filtration, you may find more residues like sand in the ocean water due to its higher mineral content.
Through these procedures, you can draw conclusions about the purity of the water and its origin based on the presence of dissolved substances and particles detected under a microscope or left behind on the filter paper. Sidestep tasting the samples, as this could be unpleasant and unsafe due to possible contaminants.