A group of middle school students is measuring the temperature of various liquids for a chemistry lab using a mercury thermometer. They have a beaker of boiling water, a beaker of ice water, and a beaker of water at room temperature. If the mercury in the thermometer contracted did the students record a higher or lower temperature?
Ans: lower

Two researchers studied air quality over the North Pole, and over Antarctica. Dan was more fond of the south pole, so he studied Antarctica, while Colt liked reading about the North Pole. Which researcher learned less about aerosol sprays?
Ans: Colt

The inuit tribe lived and hunted on the shores of the Arctic ocean., very close to the North pole. The weather there was very cold throughout the year. Their distant cousins the umpala tribe, lived thousands of miles away, on the shores of the Indian ocean, where the weather was humid and warm, in a tropical climate. Which tribe experienced less sea ice?
Ans: umpala

Two brothers have a piece of land each, situated 2 miles from each other. Jim's land is not very fertile because it has clay soil with a high pH, while Bob's land has very fertile soil and has a good productivity on it. Which of the two pieces of land has a high filtration capacity?
Ans: Bob's