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Dependent variable: What you're measuring.
Independent variable: The variable the researcher is changing.
Controlled variable: The variable that is being used as an example that is not being experimented on. It is kept the same throughout the whole experiment.
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Answer:
As the temperature of the water decreases from 4°C to 0°C, the density decreases slightly.
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platos answer.
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Explanation:
Jupiter's fifth moon, Io, is the most volcanically active body in the solar system. Plumes of sulfur spew upward as high as 190 miles. The surface of Io is splotched with lava lakes and floodplains of liquid rock.
Astronomers have mapped about 150 volcanoes on the moon, some of which blast lava 250 miles (400 km) out into space. There are volcanoes all over Io's surface, and as scientists perform observations they still occasionally see new hotspots pop up. For example, NASA's Juno spacecraft, which is currently orbiting Jupiter, found a possible new hotspot on Io on Dec. 16, 2017.(k r
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Throughout their life cycles, frogs have an important place in the food chain as both predators and prey. As tadpoles, they eat algae, helping regulate blooms and reducing the chances of algal contamination. Frogs are an important source of food for a variety of animals, including birds, fish, monkeys and snakes.
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