Across
- 3. a possible explanation that can be tested by comparison with scientific evidence
- 5. a situation specifically set up to investigate relationships between variables
- 7. the application of science to meet human needs and solve problems
- 8. a scientific explanation supported by a lot of evidence collected over a long period of time
- 11. a theory that has been tested many times without any contradictions
- 13. to figure something out from known facts using logical thinking
- 14. a variable that is kept constant (the same) in an experiment
- 17. describes evidence that can be seen independently by others if they repeat the same experiment or observation in the same way
- 19. a professional who uses scientific knowledge to create or improve inventions that solve problems and meet needs
- 20. a process of learning that begins with a hypothesis and proceeds to prove or change the hypothesis by comparing it with scientific evidence
Down
- 1. the variable you change in an experiment
- 2. a group of variables that are related
- 4. a working model of design that can be tested to see if it works
- 6. a collection of all that techniques to do an experiment
- 9. describes evidence that documents only what actually happened as exactly as possible
- 10. a process used to build and test devices that solve technical problems
- 12. a process of learning that starts with asking questions and proceeds by seeking the answers to the questions
- 15. a factor that affects how an experiment works
- 16. the exact procedure that is followed each time an experiment is repeated
- 18. each time an experiment is tried
