Biology, 28.08.2019 17:00 kathrynway2715
Matter can change from one state to another if heated or cooled. if ice (a solid) is heated it changes to water (a liquid). this change is called melting. if water is heated, it changes to steam (a gas).
Answers: 2
Biology, 21.06.2019 18:00, shelbyo1123
The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community
Answers: 2
Biology, 22.06.2019 07:00, jorgelive5870
In 2001, records showed that local stocks of fish were down worldwide. yet, records of harvests indicated that fish were being taken at records rates. what was actually happening?
Answers: 3
Matter can change from one state to another if heated or cooled. if ice (a solid) is heated it chang...
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