Across
- 2. – weak or delicate in strength
- 3. – an evening meal
- 4. – the center of an atom, containing protons and neutrons
- 7. – the outermost layer blending into space
- 9. – a person who fought to end slavery
- 12. – an old-fashioned term for refrigerator
- 13. – to clean or maintain one’s appearance
- 14. Mass – the total number of protons and neutrons in an atom
- 21. Mass – the total number of protons and neutrons in an atom
- 23. – a feeling of thankfulness and appreciation
- 24. – the smallest unit of matter that retains the properties of an element
- 25. – the fourth layer, home to the auroras and space station
- 26. – an unexpected meeting or experience
- 27. – to fasten or secure something
- 28. – the third layer, where meteors burn up
- 29. – the layer of gases surrounding Earth
- 30. – to act properly or respectfully
- 32. – neat and respectable in appearance
Down
- 1. – the act of forcing people into military service, often used by navies
- 3. – a small staircase or porch in front of a building
- 5. – a negatively charged particle that orbits the nucleus
- 6. – a positively charged particle in the nucleus
- 8. – generous and kind treatment of guests or strangers
- 9. Number – the number of protons in an atom; determines the element
- 10. – an old-fashioned term for a purse
- 11. – the edge of settled territory, especially in American history
- 15. plate – a small stovetop used for cooking
- 16. – feeling guilt or embarrassment
- 17. – the second layer, contains the ozone layer
- 18. – a pure substance made of only one kind of atom
- 19. – to make someone feel awkward or self-conscious
- 20. – someone who rents a room in another person’s house
- 22. – the lowest layer where weather happens
- 25. – belief in someone’s honesty or reliability
- 31. – a neutral particle in the nucleus