Autumn is derived from the Latin word “autumnus” which means Autumn (season). It’s the Autumn season of the year between summer and winter.

The leaves fall off trees at this time of year because of a shortened day length and decreasing temperature. By astronomical definition, autumn begins on the equinox, where the length of the day is equal to the night. This is why some people complain about feeling more tired and less awake when it’s autumn.

The Autumn Equinox falls on September 21 every year if you live in the Northern Hemisphere. If you live in the Southern Hemisphere, it’s around March 21. This means that the day is nearly over, and autumn starts around September 21 or 22, depending on your location.

So when it’s Autumn, the temperature decreases, and the day length is shorter than night (which means that leaves can’t get sunlight) – this decreases photosynthesis. Leaves need to make food to produce chlorophyll, which helps them stay green. When there isn’t enough sunlight or chlorophyll, you see all the yellow and red leaves.

Celebrations of autumn’s changing usually involve activities like hayrides, pumpkin carving, apple picking, and colorful leaf displays.

If you live around temperate regions, this means harvesting, gathering, and the lots of food and traditions around it (like Thanksgiving in America or celebrations in the UK with bonfires, etc.).

Some places where autumn is celebrated:

• Canada
• United States
• New Zealand
• China
• Russia
• Poland

Agricultural crops like apples are harvested in autumn. Once the leaves fall off, people can see apples on the ground or store.

Since the temperature decreases and food is harder to find at this time of year, some animals hibernate because it’s too cold for them. The bears wake up from their long nap once they start warmer again. It was a tradition for people to put out carrots for the bears to eat, and that’s how we got “The Great Big Carrot” in New York.