What does a syphinter do?

A free body diagram of a ball falling in the presence of air resistance would show A only a downward arrow to represent air resistance B a downward arrow to represent gravity C neither? What is an example of a situation of a scientist being creative? Suggested solution to a problem? Is distancetime a mathematical expression in average speed? How do you prepare specimen for a stereo microscope? What is a antonym for unbolted? What is the science or art of building called? Could science make using rasengan real? How is a dandelion adapted to its habitat? How many yards of cotton fabric in a pound? What element when combined with peroxide bleaches? Is cereal a singular noun or a plural noun? How many liters are in a US gallon? What is the name of Pb204? What is the properties of homogeneous? Is 38.2 Celsius considered fever? What is a Noun of capable? How could you share the result of an experiment with the rest of your class give two ways? Does it hurt refrigerator to turn off for long period of time? Is a scientific theory that is challenged is it a good scientific theory?