Fall Equinox

3. Leaves, either individual leaves or the collective leafy canopy of many trees or plants
4. The ninth month of the year, between August and October
7. The event in which the sun crosses the celestial equator, when day and night are of approximately equal length.
12. The natural separation and dropping of leaves.
13. The time of year when crops are ripe and ready to be gathered
15. The upper layer of earth in which plants grow.
16. Woody, tall plant with a single trunk and many branches, usually living for a long time
17. The natural light of day that comes from the sun

1. A pigment present in green plants that is required for photosynthesis.
2. The degree or intensity of heat
5. Adapt or prepare for use in cold weather
6. Division of the globe into two equal halves, typically divided into northern and southern halves by the Equator.
8. An imaginary line about which the earth rotates or spins.
9. Photosynthetic life forms which derive energy and sugars from the sun, water and nutrients
10. Describes a tree or bush that sheds its leaves in the autumn every year.
11. The third season of the year, between summer and winter.
14. Situated in the north
18. One of the green, usually flat parts that grow from a stem or twig of a plant and that function mainly in making food by photosynthesis