Michael puts a thermometer in a jar, closes the top, and then sets it by the window where the Sun is shining through. There is also a thermometer on the
counter outside the jar. Ten minutes later Michael notices that the
temperature on the thermometer inside the jar has risen, but the
thermometer on the counter stayed the same. How is what happened inside
the jar similar to the greenhouse effect? How might it be different?

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.