C165- Integrated Physical Science Unit 2 Scientific Inquiry questions and answers

Iron ore consists mainly of iron atoms and oxygen atoms joined to each other to form several different possible forms of iron oxide. Which branch of physical science MOST directly deals with developing ways to remove the oxygen from iron oxide, thus leaving iron metal? earth science Which field of physical science MOST directly explains how the motion of the continents over 100 million years led to mountains and volcanoes in some places above land, and deep ocean trenches in other places beneath the ocean surface? Earth Science Which type of scientific study is BEST suited for collecting data that will be used to analyze statistical information about the kinds of meanders, or turns, in the path of rivers such as the one shown in the photograph below? Image of a rock arch formed by wind and rain. field study Geckos, like the one shown here, are known for being able to walk on very smooth surfaces, even upside-down. Tiny ridges on the gecko's feet allow it to stick to a smooth glass surface because of weak forces between the atoms in the gecko's foot and the atoms in the glass. Which two fields of physical science would be MOST relevant in investigating how a gecko sticks to glass? physics & chemistry A scientific procedure done in order to test a hypothesis is a(n) experiment While on a hiking trip, several children become sick after drinking water from a well. Which of the following is a hypothesis concerning this situation? Bacteria in the well may have caused the sickness A scientific theory is discarded A theory is discarded or modified if new data contradict it. In what sense was the ancient Ptolemaic system used to describe the motion of the planets a model? It described the motion of the sun & planets along imaginary spheres. The Ptolemaic system was based on an elaborate system that differed from the real motion of the bodies involved, but could reproduce its main features. When there is no conceivable way to prove a statement false, then the statement is untestable Science can be defined as a body of knowledge that is subject to change as more evidence is gathered Which of these best describes how atomic theory developed? Many people at different times contributed to the discovery of the atomic nature of matter and subatomic particles Why is it useful for there to be an official size for each unit? to allow people in different locations to compare measured values Correct. People in diverse locations can communicate about the lengths of time intervals, the sizes and masses of objects, and relay other measurements, and all agree on what the numbers mean because the units used have precise official values. Which of the following is closest to your height? 2m Which of these is not a derived SI unit kilogram Kilogram is the SI base unit for mass What is the SI base unit for mass kilograms If each side of a square is decreased two times, the resulting area of the new square will . Therefore, the area of the square is the length of its sides. Correct. If the length of each side decreases, the area of a square will also decrease. Correct. The area of a square is directly related to the length of its sides. decrease & directly related to Which field of physical science deals MOST directly with which atoms join together to form molecules, such as the water molecule or the nitrogen molecule, represented below? chemistry