Across
- 1. based on the number ten
- 2. a group of eight, such as eight lines or eight musical notes
- 7. a period of ten years
- 8. an officer in ancient Roman army, which originally had 100 men
- 10. a group of seven singers or musicians who perform together; a piece of music that is meant to be performed by seven people
- 12. the ninth month of the year, formally the seventh
- 13. relating to the temperature scale in which the boiling point of water is at 100 degrees and the freezing point of water is at 0 degrees
- 16. a flat shape that has eight sides and eight angles
- 17. a 2-dimensional figure that has six sides and six angles
- 18. lasting for seven years; happening every seven years
Down
- 1. one tenth of a meter; ten centimeter
- 3. a sea animal that has a soft body and eight long arms
- 4. a sixth of a circle; an instrument used to determine the position of a ship or airplane
- 5. a person who is between 70 and 79 years old
- 6. a length equal to 1/100 meter; ten millimeter
- 8. a period of one hundred years
- 9. a nine sided polygon
- 11. one part in a hundred; an amount that is equal to one one hundredth
- 14. the eleventh month of the year, formally the ninth
- 15. the tenth month of the year, formally the eighth