Ответ:
Equipment - 10. The tools, machines ...
Observation - 4. Something that you notice ...
Maintain - 9. To make something continue ...
Exploration - 3. The act of traveling ...
Technology - 7. New machines, equipment ...
Breakthrough - 5. Unimportant new discovery (но почему написано unimportant...?)
Discovery - 1. To find something ...
Civilization - 6. The societies in the world ...
Invention - 2. To make, design ...
Experiment - 8. To try using various ideas ...