Vocabulary Review

3. A large system of stars, gas, dust, and dark matter bound together by gravity.
4. To receive money in return for work or services.
6. To use money to buy goods or services.
8. A group of stars that form a recognizable pattern or shape.
12. The regular rise and fall of the sea level caused by the gravitational pull of the moon and the sun.
13. The process of acquiring knowledge, skills, values, and attitudes.
14. Achievement of a goal or desired outcome.
16. To keep money instead of spending it, usually to use later.
20. A chance or possibility for doing something or achieving a goal.
21. The orbital motion of a planet around the sun.
23. Coins or banknotes used to buy goods and services or to pay for things.
24. A person or company that makes goods or provides services for sale.

1. Something that is necessary for survival or to live comfortably.
2. The force of attraction between objects due to their mass; it's what causes the moon to affect tides on Earth.
3. Relating to geography or the physical features of an area.
5. The different appearances of the moon as seen from Earth throughout its orbit, including new moon, first quarter, full moon, and last quarter.
7. The ability or right to use or participate in something.
9. A person who buys goods or services for personal use.
10. Having the same rights, opportunities, or value as others.
11. The spinning motion of a planet on its axis, causing day and night.
15. Something that you desire but do not necessarily need.
17. A place where goods are bought and sold, or the overall demand for a product or service
18. The recurring phases of the moon, including new moon, first quarter, full moon, and last quarter.
19. A plan for how to spend or save money during a certain period.
22. To successfully deal with or overcome a problem or obstacle.