Across
- 2. A robot with a human appearance
- 3. energy,force
- 5. a unit of electrical resistance
- 8. without it things remain theories
- 9. man of steel
- 12. source of salt
- 13. The branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles.
- 15. a contractile form of tissue which animal use to effect movement
- 17. smallest unit of living matter
- 18. the address of a World Wide Web page
Down
- 1. Search engine optimization
- 2. a sanction of an item;approbation
- 4. carbon monoxide
- 6. water of liquid finally suspended in air
- 7. exercise carried out by scientists
- 10. Used as an Internet search engine
- 11. a symbol in an alphabet
- 12. A set of connected things or parts forming a complex whole
- 14. 5280 feet
- 15. the sole natural satellite of earth
- 16. a visible indication