15 points for each answer also I will report silly-bop answers!
One group of students did an experiment to study the movement of ocean water. The steps of the experiment are listed below.
Fill a rectangular baking glass dish with water.
Place a lighted lamp near the left edge of the dish.
Place a plastic bag with ice in the water near the right edge of the dish.
Put a few drops of ink in the water.
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?
A. Surface-water sinks when heated.
B. Surface water moves from colder to warmer regions.
C. Surface water moves from warmer to colder regions.
D. Surface water moves irrespective of water temperature.

Sounds like the experiment was intended to show on a small scale ocean currents from the poles to the equator and back to the poles. The bag of ice would simulate the cold at the poles while the lamp would simulate the heat provided by the sun near the equator. With that in mind, let's look at the possible flaws and see what is likely.

Not enough ink was added