Across
- 3. an ancient and historic mining method using a flood or torrent of water to reveal mineral veins
- 7. a type of meterial gathered from animals
- 8. is made out of metal and is used in the kitchen to cut things
- 11. is a type of positive displacement pump where the high-pressure seal reciprocates with the piston
- 12. is a heat engine that performs mechanical work using steam as its working fluid
- 13. a underground pipe or tunnel system for transporting sewage from houses
- 14. a farm implement or person that reaps(cuts) crops at harvest when they are ripe
Down
- 1. a farm tool for loosening or turning the soil before sowing seed or planting
- 2. an arn attached to a sailboat to convert circular motion into reciprocating motion
- 4. is a form of mining that uses high-pressure jets of water to dislodge rock meterial or move sediment
- 5. a malleable metal alloy consisting of tin antimony copper bismuth and sometimes silver
- 6. a an architechtural element similar to the hollow upper half of a sphere
- 9. an instrument used for measuring density or relative density of liquids based on the concept of buoyancy
- 10. an instrument used for measuring the distance traveled by a vehicle such as a bicycle or a car
- 15. a concrete dam that is curved upstream in plan