PUZZLE PIECES: 228
TIME: 33mins 45secs
Showing posts with label nature. Show all posts
Showing posts with label nature. Show all posts
Wednesday, April 24
Monday, April 22
9. AUTUMN LEAVES
Why do leaves color change?
The bright reds and purples we see in leaves are made mostly in the fall. In some trees, like maples, glucose is trapped in the leaves after photosynthesis stops. Sunlight and the cool nights of autumn cause the leaves turn this glucose into a red color. The brown color of trees like oaks is made from wastes left in the leaves.
It is the combination of all these things that make the beautiful fall foliage colors most people enjoy each year.
The bright reds and purples we see in leaves are made mostly in the fall. In some trees, like maples, glucose is trapped in the leaves after photosynthesis stops. Sunlight and the cool nights of autumn cause the leaves turn this glucose into a red color. The brown color of trees like oaks is made from wastes left in the leaves.
It is the combination of all these things that make the beautiful fall foliage colors most people enjoy each year.
Puzzle Pieces: 182
Time: 21mins 31secs
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