00:00Here's the fact.
00:01Why do leaves turn red and yellow in autumn?
00:03Because the green color, called chlorophyll, starts to disappear.
00:07Wait, so the leaves just lose their color?
00:09Not exactly.
00:10When chlorophyll fades, other pigments that were always there, like yellow and orange,
00:14finally show up.
00:15So those colors were hiding inside the leaves the whole time?
00:18Exactly.
00:19And sometimes trees even make red and purple pigments called anthocyanins just for autumn.
00:24So autumn is like the trees showing their secret colors?
00:27Yep, it's nature's final show before the leaves fall.
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