The 1. ____________________ is one way that people think about and solve questions or problems. When you begin your experiment, it is important to state a problem or 2. ____________________ that you would like to find an answer to. It is important to look up or 3. ____________________ up-to-date information about your topic before you conduct any experiments. When you conduct an experiment and you deliberately change one thing, you are introducing a(n) 4. ____________________. It is critical to watch or 5. ____________________ what is happening with every step of your experiment. When you explain what happened in your experiment, you 6. ____________________ the results. After an experiment, it is important to write down your 7. ____________________ or summary of what you learned​