Across
- 4. Ratio of the circumference of a circle to its diameter
- 6. triangle that has different length for each sides
- 8. A machine with a rotating wheel and axle used to transmit power
- 12. smallest unit of data in computer
- 13. type of simple machine in seesaw
- 14. study of how living system organisms interact with their environment
Down
- 1. the process by which organisms produce offspring
- 2. The study of the properties and behavior of light
- 3. SI unit for length
- 5. Branch of mathematics concerned with shapes and their properties
- 7. The force that opposes motion between two surfaces in contact
- 9. Material that does not allow the flow of electricity
- 10. the ability of a material to return to its original shape after being stretched
- 11. smallest units of life
- 12. Force exerted by a moving fluid on an object