How do scientists find answers to questions?

How many inches is 1.54 meters? How can you reveal pencil writing covered by permanent marker? How can you eujaculate? Can you give 25 examples of abstract nouns? Are computers cleverer than people? Explain how to flush impurities from a water regulating valve that is on a water cooled condenser? Other term for hypothesis? Is lighting a campfire a chemical or physical change? Make a simple sentence using word surprised? How are hacksaw blades measured? What is a cool name for a science fair project on vitamin c levels in an orange? How many pounds of pressure are there in thirty kilograms of rope tension? What is greater five hundred millimeters or fifty centimeters? What is interaction in an experiment? Which of these terms is defined as observations that are made using the scientific method and used as evidence? What 10 things are strong but bend easily? What household object is a kilometer long? What does 1200 centimeters equal? How many different types of placards are there showing on dot specifications? What are the constallations?

How do scientists find answers to questions?