Week 27

3. An instrument used to measure temperature.
8. The study of microscopic organisms such as bacteria and viruses.
10. A container that keeps liquids hot or cold.
11. The use of scientific knowledge to create tools, machines, and systems.
14. A member of the highest social class, often with privileges and power.
15. A device used to control and regulate temperature indoors.
16. The scientific study of the mind and behavior.
17. A collection of myths, especially those of a particular culture or religion.
19. A system of government where citizens have the power to vote and make decisions.
20. The study of Earth's physical features, climate, and populations.

1. The study of Earth's structure, materials, and processes.
2. A collection of poems, stories, or literary works.
4. A form of government where power is held by a privileged upper class.
5. An expression of regret or sorrow for an error or wrongdoing.
6. Operating by itself without human control.
7. Relating to heat or temperature.
9. Relating to democracy, where people have equal rights and a say in decisions.
12. The arrangement of events in the order they occurred.
13. A vehicle, such as a car, that operates with an engine.
18. A branch of mathematics dealing with shapes, angles, and dimensions.