What is the inquiry or problem relating to a topic that can be answered by conducting an experiment?

What does surface effect action with reference to Wing-In-ground craft means? Why do you miss a period when your not pregnant? Who invented the inch? The main body of the research paper is best written after writing the introduction? How many pounds is in one hundred and twenty liters? Why can microwave radiation be used to detoxify trichloromethane but not tetrachloromethane? What glassware provides the most accurate volume? What is the disadvantage of metal chair? What happend to the rubber slippers when bent? How many miles in 10000 meter? Why do fluids travel faster near the centre of pipes and tubes than the edges? Who invented the sugar cube? Use Rapid in a sentence? What is it called when you use patterns in an investigation to say what may happen next? What are some physical examples of weathering and erosion? What are 10 ways to proper care in handling the microscope? What are synonyms of dripping? What was life like before the light bulb was created? A common noun is? When are the 3 common temperature scales used?

What is the inquiry or problem relating to a topic that can be answered by conducting an experiment?