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Compounds consist of one or more atoms joining together to form a new substance. From a scientific perspective, which makes the compound a system? A. The compound contains both matter and energy. B. The atoms in a compound interact with each other. C. There are many different atoms that can make different compounds. D. Compounds are made of materials that scientists want to study. A museum is creating an exhibit about solar systems. Which type of exhibit would best explain what solar systems are? A. Put a solar system on a poster in the exhibit. B. Use a life-size drawing of a solar system. C. Display a three-dimensional model of a solar system. D. Set up a telescope so that visitors can view space. Models represent objects in the real world. How do models compare to real-world objects? A. Most models are larger than real-world objects. B. Most models are simpler than real-world objects. C. Most models are exactly the same as real-world objects. D. Most models are more scientific than real-world objects. A bucket of warm water can be considered a closed system for a very short period of time. Which best explains this phenomenon? A. The bucket of warm water will eventually turn cold and begin to evaporate. B. The bucket of warm water can be easily spilled. C. The bucket of warm water can contain different elements. D. The mass of the bucket of water will eventually disappear. Which information about the earth would be represented when a globe is used as a model? Choose all answers that are correct. A. the place on the earth that will receive the most light B. the location of the earth's continents C. the earth's orbit around the sun D. the number of oceans on the earth Which information about the earth would not be represented when a globe is used as a model? Choose all answers that are correct. A. the speed of rotation on its axis B. the location of all continents found on the earth C. different geographic regions on the earth D. the speed of revolution around the sun Which information about the earth would not be represented when a globe is used as a model? Choose all answers that are correct. A. the speed of rotation on its axis B. the location of all continents found on the earth C. different geographic regions on the earth D. the speed of revolution around the sun Why has the model of the atom changed over time? A. The model of the atom changed as scientists made more accurate observations. B. The model of the atom changed over time because the atoms changed composition. C. All models of the atom created by scientists are too simple. D. All atoms are unstable and are continuously changing. Why might the model of the atom change in the future? A. The components that make up an atom can change over time. B. Scientists are not able to see the atom, so all atomic models are a guess. C. As new discoveries about the atom are made, scientists must update the atomic model. D. The components of an atom differ from atom to atom and scientists have not discovered all the variations.Which of the following defines a universal law? A. a principle that was in effect but no longer applies B. a principle that is in effect everywhere at all times C. a principle that is in effect everywhere most of the time D. a principle that is in effect in some places at all time
Jalen wanted to measure the temperature of an object. Which instrument should he use? A. balance B. thermometer C. graduated cylinder D. ruler Malcolm wanted to measure the volume of an object. Which SI unit should he use? A. gram B. Kelvin C. meter D. liter Juan is comparing the brightness of two lightbulbs. Which SI unit should he use? A. Kelvin B. candela C. mole D. meter Why are SI units helpful for describing objects? A. They are the standard used by scientists worldwide. B. They are more accurate. C. They do not measure quantity. D. They are more precise.
I hope u will delete the excess questions.
open up all these questions separately , cuz no one will be bothered to scroll and look for the correct answers. -_-
i would help but shes kind of right that is a lot to look at in one take
i wanna help... but mate there is way to many questions in one place im so confused.