sts

6. /A scientist associated with early studies on nanotechnology.
8. /The scientist who introduced the theory of evolution by natural selection.
11. /The phenomenon caused by excess greenhouse gases trapping heat in the atmosphere.
13. /The scientist who proposed the heliocentric model of the universe.
16. /The civilization known for its pyramids and hieroglyphic writing.
17. /The age when early humans started using metal tools.
18. /A form of alternative medicine that involves regenerating cells to treat diseases.
19. /The scientist who proposed psychoanalysis and theories on the unconscious mind.
20. /The country that colonized the Philippines and introduced formal science education.

1. /A period of rapid technological advancement in digital communication and computing.
2. /This revolution marked the emergence of modern science in the 16th century.
3. /The philosophy that emphasizes reason, ethics, and justice in human life.
4. /The scientific field that studies the structure and function of genes.
5. /This ancient civilization developed the earliest form of writing, cuneiform.
7. /The theory that scientific claims must be testable and refutable.
9. /The philosophical belief that pleasure is the highest good.
10. /The civilization that developed advanced astronomy and a complex calendar system.
12. /The Greek philosopher who emphasized eudaimonia as the key to human flourishing.
14. /The first civilization to develop paper, gunpowder, and the compass.
15. /The era characterized by the development of iron tools and weapons.