Spelling Words
Talk with an Astronaut
Greek Word Parts
Many words are formed from Greek word parts.
logy, meaning "study of"
aster, meaning "star"
therm, meaning "heat"
sphere, meaning "ball"
Weekly Words
| 1. geology | 6. thermal | 11. zoology | 16. thermostat |
| 2. thermometer | 7. disaster | 12. sociology | 17. astronomy |
| 3. astronaut | 8. meteorology | 13. biosphere | 18. spherical |
| 4. atmosphere | 9. technology | 14. thermos | 19. ecology |
| 5. biology | 10. hemisphere | 15. asterisk | 20. mythology |
Challenge Words
|
21. psychology |
22. anthropology |
23. thermoelectric |
24. astronomical | 25. microbiology |