1) What is a universal solvent? a) the quality of water that makes it able to dissolve more substances than any other solvent can. b) the tightness across the surface of water that is caused by the polar molecules pulling on one another c) The tendency of water molecules to stick to each other. 2) What is surface tension? a) The tendency of water molecules to stick to each other. b) the tightness across the surface of water that is caused by the polar molecules pulling on one another. c) the quality of water that makes it able to dissolve more substances than any other solvent can 3) What is cohesion? a) the amount of matter in a given space; mass per unit volume b) the tendency of water to stick to other substances c) the tendency of water molecules to stick to each other 4) What is adhesion? a) the tendency of water to stick to other substances b) The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree celcius...amount of heat required to increase the temperature of water c) the amount of matter in a given space; mass per unit volume 5) What is density? a) the area drained by a river and its tributaries b) The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree celcius...amount of heat required to increase the temperature of water c) the amount of matter in a given space; mass per unit volume 6) What is specific heat? a) the area drained by a river and its tributaries b) the amount of energy required to raise the temperature of 1 gram of a substance by 1 degree celcius...amount of heat required to increase the temperature of water c) the area of land that is drained by a water system 7) What is a river basin? a) the area of land that is drained by a water system b) the area drained by a river and its tributaries c) small river or stream that flows into a large river or stream; a branch of the river 8) What are watersheds? a) the area of land is drained by a water system b) small river or stream that flows into a large river or stream; a branch of the river c) water that fills the cracks and spaces in underground soil and rock layers 9) What is a tributary? a) underground bed or layer yielding ground water for wells and springs etc b) water that fills the cracks and spaces in underground soil and rock layers c) small river or stream that flows into a large river or stream; a branch of the river 10) What is groundwater? a) underground bed or layer yielding ground water for wells and springs etc b) water that fills the cracks and spaces in underground soil and rock layers c) the area where a freshwater stream or river merges with the ocean. Often a nursery for young. 11) What is an aquifer? a) underground bed or layer yielding ground water for wells and springs etc b) the area where a freshwater stream or river merges with the ocean. Often a nursery for young. c) the area of the ocean beyond the edge of the continental shelf. Most diverse organisms live near the surface. 12) What is an estuary? a) spots on the ocean floor where hot gases and minerals escape from earth's interior into the water b) the area of the ocean beyond the edge of the continental shelf. Most diverse organisms live near the surface. c) the area where a freshwater stream or river merges with the ocean. Often a nursery for young. 13) What is an open ocean zone? a) the area of the ocean beyond the edge of the continental shelf. Most diverse organisms live near the surface b) spots on the ocean floor where hot gases and minerals escape from earth's interior into the water c) Tiny algae and animals that float in water and are carried by waves and currents 14) What are hydrothermal vents? a) free-swimming animals that can move throughout the water column b) Tiny algae and animals that float in water and are carried by waves and currents c) spots on the ocean floor where hot gases and minerals escape from earth's interior into the water 15) What is plankton? a) free-swimming animals that can move throughout the water column b) tiny algae and animals that float in water and are carried by waves and currents c) organisms that live on the bottom of the ocean or other body of water; bottom-dwellers 16) What is nekton? a) free-swimming animals that can move throughout the water column b) organisms that live on the bottom of the ocean or other body of water; bottom-dwellers c) the movement of deep, cold, and nutrient-rich water to the surface 17) What are benthos? a) the movement of deep, cold, and nutrient-rich water to the surface b) organisms that live on the bottom of the ocean or other body of water; bottom-dwellers c) A device that determines the distance of an object under water by recording echoes of sound waves 18) What is an upwelling? a) A device that determines the distance of an object under water by recording echoes of sound waves b) the movement of deep, cold, and nutrient-rich water to the surface c) an underwater vehicle built of strong materials to resist pressure at depth 19) What is a SONAR? a) a device that determines the distance of an object under water by recording echoes of sound waves b) an underwater vehicle built of strong materials to resist pressure at depth c) term that describes an organism that lives on land 20) What is a submersible? a) term that describes an organism that lives on land b) an underwater vehicle built of strong materials to resist pressure at depth c) term that describes an organism that lives in water

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