One group of students did an experiment to study the movement of ocean water. the steps of the experiment are listed below. 1. fill a rectangular baking glass dish with water. 2. place a lighted lamp near the left edge of the dish. 3. place a plastic bag with ice in the water near the right edge of the dish. 4. put a few drops of ink in the water. 5. observe the ink flow from the side where the lamp is placed towards the side where the ice bag is placed. what does the students' experiment most likely demonstrate? (2 points) question 15 options: 1) surface water sinks when heated. 2) surface water moves from colder to warmer regions. 3) surface water moves from warmer to colder regions. 4) surface water moves irrespective of water temperature

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answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.