Across
- 2. The formula for the ________meter of a rectangle is length+length+width+width.
- 4. An ________isan is a person skilled in a craft.
- 6. The metric system of measurement is based on ________mals.
- 9. The science of secret codes is ________graphy.
- 13. The Greek root that mean stop, height, tip, and beginning.
- 14. Some people lose their ________y as they get older.
- 15. ________is a Greek root that means earth, soil, and global.
- 18. The Greek root that means liquid or water.
- 19. Some studies have shown that pigeons can hear ________sonic sound.
Down
- 1. ________gons have 5 edges and 5 vertices.
- 3. Some people say that nothing is ________possible.
- 5. My brother used to ride a ________cycle when he was 4.
- 7. Explorers ________navigated the Earth.
- 8. Plant life is also known as ________.
- 10. The United States of America is a ________cratic nation.
- 11. ________logists study live animals.
- 12. ________aeologists study ancient cultures.
- 16. Life forms from places besides Earth are called ________terrestrials.
- 17. ________anology must be a very interesting science to study.
- 19. People who ride ________cycles must be very skilled.