(02.02 HC) In 2014, the European Space Agency’s Rosetta mission landed on comet 67P/Churyumov-Gerasimenko. The spacecraft detected the presence of water ice on the comet. Does this finding allow the outside-in model to be elevated to a scientific theory? Why or why not? (3 points)

(01.03 LC) Which ocean zone receives the most of sunlight? (3 points)

(01.04 LC) What property of water allows fish to survive in a lake that is frozen over? (3 points)

(03.02 HC) A group of scientists is developing a new chemical compound. They want to test its effects on an aquatic ecosystem using a nearby ocean bay. They enclose a region of a bay with an insulated covering to create an isolated system in which to do their experiment. Predict what would happen to living organisms in this isolated experimental system. (3 points)

(02.02 MC) When the Earth’s continental crust and ocean crust formed, they were different densities. Why did they differ in density and how did this affect their formation? (3 points)

(01.03 HC) The Helmet Jelly, a type of jellyfish, will migrate from an ocean zone with limited light to the zone that has the most available light. Which zones are the jellyfish moving between and why? (3 points)

(01.02 MC) A deep sea robot is sent to the bottom of the ocean. What will it most likely observe, in terms of the numbers of photosynthetic organisms and light conditions? (3 points)

(01.04 MC) Water is said to have a high boiling point. How does this property of water allow for life in the oceans? (3 points)

(01.02 MC) A submarine robot is operating near the ocean floor. What pressure and temperature data will it most likely record? (3 points)

(03.06 MC) Many species of aquatic snails secrete a slime and are adapted to live in coastal regions. Rather than swim, they move along the ocean floor in shallow water, wedging themselves into crevices or burrowing into sand. What could happen to these snails if they did not have these adaptations? (3 points)