Across
- 4. A variable that is made to or allowed to have multiple values. This is also called an independent variable.
- 8. Pieces of information obtained through observation.
- 9. An experiment in which all variables are held constant except one.
- 10. Statements that propose a testable explanation for a natural phenomenon. It is based on observation and prior knowledge and is a starting point for an experiment.
- 12. A judgment (decision) that is based on analyzing data and is reached by reasoning.
- 14. A planned series of actions that test whether an idea is true.
- 16. The process of performing a procedure two or more times in order to reduce error (also called repetition).
- 17. Scientific investigations designed to demonstrate a fact or make a discovery by performing a test.
- 18. Pieces of information gathered by using the senses.
- 19. An object or standard set of conditions that serves as a basis for comparison.
Down
- 1. A prejudice, or unfair opinion, either for or against something or someone.
- 2. A scientific investigation carried out in a natural setting.
- 3. A scientific investigation that involves observing the ways in which two or more objects, events, or processes are similar and different.
- 5. Orderly processes of gathering and thoroughly examining facts and testing them to find out whether they can explain something that happens.
- 6. Any factor that can change during an investigation or in nature.
- 7. A variable that changes in response to a change in another variable. This is also called a dependent variable.
- 11. One of the replications or repetitions of a scientific experiment.
- 13. A scientific investigation that involves observing the features of an object or a process and identifying facts that describe the object or process.
- 15. A factor in an experiment that is not allowed to change (also called a controlled variable).