ab2 2020 Taylor, Finn

3. the layer of earth that burns up meteors
5. an instrument that tells you the altitude
6. colorless odorless unreactive gas that makes up 78 percent of earths atmosphere
9. long term heating of earths climate
11. the thinnest layer of the atmosphere
15. colorless odorless gas that is toxic to humans
16. the gradual heating of earths surface
18. the amount of impact gravity has on an object
21. envelope of gasses surrounding earth
23. an instrument that tells the temperature
24. a instrument that tells the relative density of an object
25. makes up 21 percent of air and we need it to live

1. the degree of compactness of a substance
2. protective layer around earth that separates our atmosphere and space
4. radiation from a planet's atmosphere warms the planet's surface to a temperature above what it should be
7. the amount of heat presence and area has
8. gaseous phase of water
10. height of an object or point in relation to sea level or ground level
12. the layer in the atmosphere where the ozone layer is
13. the gradual heating of the ocean
14. this is the lowest layer of the atmosphere and also where weather occurs
17. colorless odorless gas that is flammable
19. the milky ways star
20. rays from the sun that can cause skin cancer
22. makes up about one percent of air