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## PowerPoint Slideshow about ' Grade 8 Review' - adriel

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### Grade 8 Review

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?

Q 8: Not all fresh water sources are safe. What term is used to describe drinkable water ?

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

Q 15: Water flowing down the Assiniboine River flows east towards the Forks. Why?

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