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# Grade 8 Review - PowerPoint PPT Presentation

Grade 8 Review. Water Systems. Q 1: The rotation of the Earth affects winds and ocean currents. What is this effect called?. A1: The Coriolis Effect.

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Water Systems

Q 1: The rotation of the Earth affects winds and ocean currents. What is this effect called?

Q 2: The water cycle involves runoff, evaporation, condensation, absorption, precipitation and transpiration. What are the 3 main processes?

Q 3: A ship travels from fresh water to sea water? Will the ship float higher or lower in the water?

Q 4: A student heats equal amounts of sand and water in identical beakers on a hot plate set at 250oC? He measures the temperature of both substances every minute for 45 minutes.What is the independent variable?

Q 5: A student heats equal amounts of sand and water in identical beakers on a hot plate set at 250oC? He measures the temperature of both substances every minute for 45 minutes.What is the dependent variable?

Q 6: A student heats equal amounts of sand and water in identical beakers on a hot plate set at 250oC? He measures the temperature of both substances every minute for 45 minutes.What is a possible hypothesis?

A10: They distribute heat around the globe; they affect climate; they create upwellings which stir nutrients off the ocean floor.