Across
- 2. A testable idea or explanation that leads to scientific investigations
- 5. _________ tools are tools that use programs,or software to do work
- 6. Applying science and mathematics to solve real-world problems
- 9. ________ science is the modification and study of materials
- 11. Uses a model to copy the function, behavior, or process of the thing it represents
- 14. An important part of the design process involves testing and evaluating a ___________.
- 15. __________ property describes a material's ability to take part in a chemical reaction
Down
- 1. ________ properties are the characteristics of a material that can be observed or measured
- 3. An organized procedure to study something under controlled conditions
- 4. The variable that is changed in order to test the effect of the change
- 7. The application of science for practical purposes
- 8. Information gathered by observation or experimentation that can be used in calculating or reasoning
- 10. The study of the natural world
- 12. Representation of an object or system
- 13. Engineers perform a risk-benefit ______ to compare the possible negative effects of making a decision involving technology with the possible positive effects
- 14. ______ tools are helpful objects that are used to do physical work