Science Diary Blogs - 10 Ekim 2025 by Hatice Aday

Leaf Color Change in Autumn

haticeadday — 2025-10-10 08:04:13 UTC

2-Scientific Explanation

haticeadday — 2025-10-10 08:04:13 UTC

The brilliant colors of autumn leaves are due to the breakdown of chlorophyll, the green pigment responsible for photosynthesis. As days shorten and temperatures drop in autumn, trees stop producing chlorophyll, allowing the previously masked pigments: carotenoids (yellow/orange) and sometimes newly produced anthocyanins (red) to become visible before the leaves drop.

3-Child-Friendly Explanation :

haticeadday — 2025-10-10 08:04:13 UTC

In summer, leaves are green because they help the tree make food from sunlight. When autumn comes, the tree gets ready to rest. The green goes away, and the leaves show their secret colors; yellow, orange, and red. It’s like the tree is saying a colorful goodbye before winter!

4-Two Open-Ended Questions for Children:

haticeadday — 2025-10-10 08:04:13 UTC

1-Why do you think the leaves don’t stay green all year?

2-What colors can you find on the leaves around you? Why might they be different?

5-Short Hands & Minds-On Activity

haticeadday — 2025-10-10 08:04:13 UTC

1. Go outside and collect leaves of different colors and shapes.

2. Place a leaf under a sheet of white paper and gently rub over it with crayons or colored pencils.

3. Talk about the colors that appear.

4. You can group leaves by color (green, yellow, orange, red) and discuss which colors are more common.

5. Optionally, stick the leaf prints on a poster to make an “Autumn Leaf Rainbow.“