Across
- 2. the history and structure of the earth
- 3. the composition and changes of matter
- 6. the interaction between matter and energy
- 8. the study of rocks and minerals
- 10. the study of earthquakes
- 12. the study of plants
- 16. the studies of physical and biological aspects of oceans
- 18. the study of organism in their natural habitats
- 19. studies earth’s weather and atmosphere
- 20. the study of animals
Down
- 1. the study of composition of soil
- 4. the study of poisons and its antidotes
- 5. the study of heavenly bodies
- 7. the study of skin, hair, nails and scalp
- 9. the study of neurons or brain cells
- 11. the study of parts and diseases about heart
- 13. the study of number and its operations
- 14. the study the positions of celestial bodies relating to influence on human fate
- 15. the study of radiation like x-rays
- 17. the study of flight of airplanes
