Across
- 4. Explosion of a massive star at the end of its life
- 9. Layer of gases surrounding a star or planet
- 12. was an Italian Renaissance sculptor from Florence
- 14. The study of living organisms
- 17. Painted "The Sistine Chapel ceiling"
- 18. The fifth planet out from the Sun and the first and largest of the gas giants
- 19. The solid surface layer of a planet or moon
Down
- 1. Father of Biology
- 2. Painted "The School of Athens"
- 3. Study of the space beyond the Earth and of its contents
- 5. The distance between two peaks of a wave
- 6. It is a country consist of 7,107 islands
- 7. The scientific study of plants
- 8. A branch of mathematics that uses symbols or letters to represent variables, values or numbers, which can then be used to express operations and relationships and to solve equations
- 10. A rotation through a full circle, or 360 degrees
- 11. The scientific study of rocks
- 13. World's largest continent
- 15. Scale of temperature
- 16. The central object in the Solar System
- 19. The central region of a star, planet or galaxy