Across
- 2. a solid or liquid synthetic organic polymer used as the basis of plastics, adhesives, varnishes, or other products.
- 4. the reduction in volume (causing an increase in pressure) of the fuel mixture in an internal combustion engine before ignition.
- 5. one of several natural substances that exist in food such as meat, eggs, and beans, and which your body needs in order to grow and remain strong and healthy
- 7. object the ability of an object to float
- 9. the physical force or pressure on an
- 10. the resistance of a material to breaking under tension.
Down
- 1. a small clear dish with a cover which is used by scientists, especially for growing bacteria
- 3. relating to or involving electric polarization resulting from the application of mechanical stress.
- 6. a chemical compound that has a simple structure of large molecules
- 8. a substance such as glue that you use to stick two things together