https://padlet.com/soallyse/gn4wthhtjrgn Why do leaves change so much during the seasons. Starring Fall. en-us 2017-10-24 02:34:42 UTC 2024-11-25 20:15:38 UTC hello@padlet.com soallyse https://padlet.com/soallyse/gn4wthhtjrgn/wish/200196746 Of all the natural processes around us, the annual changing of leaves from green to different shades of yellow, orange, and red is perhaps the most beautiful. But behind this show of color, there are important scientific processes at work.

When you "google":
"The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible and give the leaves part of their fall splendor. At the same time other chemical changes may occur, which form additional colors through the development of red anthocyanin pigments."
www.esf.edu/pubprog/brochure/leaves/leaves.htm ]]> 2017-10-24 20:25:24 UTC https://padlet.com/soallyse/gn4wthhtjrgn/wish/200196746 soallyse https://padlet.com/soallyse/gn4wthhtjrgn/wish/200196910 2017-10-24 20:25:56 UTC https://padlet.com/soallyse/gn4wthhtjrgn/wish/200196910 soallyse https://padlet.com/soallyse/gn4wthhtjrgn/wish/200197677 Check out this website and try out changing leaves for yourself all that is needed is on the website and below the link is the reasoning given by the website:

"Find Out Why Leaves Change Color"

"Chlorophyll is a green compound that hides the other colored pigments present in leaves. In the autumn chlorophyll breaks down, allowing the other pigments to be seen. The mix of pigments in a leaf may be separated into bands of color by the technique of paper chromatography. Chromatography involves the separation of mixtures into individual components, which you just did using alcohol and energy (heat). Then, by "absorption" and "capillarity," separation can take place! The paper holds the substances using absorption, while capillarity pulls the substances up the paper at different rates. Pigments are separated on the paper and show up as colored streaks or bands. Pretty cool, huh? As possible extension activities have your child compare different types of leaves and/or experiment with other types of paper."]]> 2017-10-24 20:28:51 UTC https://padlet.com/soallyse/gn4wthhtjrgn/wish/200197677 soallyse https://padlet.com/soallyse/gn4wthhtjrgn/wish/200198578 2017-10-24 20:32:01 UTC https://padlet.com/soallyse/gn4wthhtjrgn/wish/200198578 soallyse https://padlet.com/soallyse/gn4wthhtjrgn/wish/200199595 An interactive powerpoint about how and why leaves change in the autumn. Click on the Red link below to follow to the slideshow.

PowerPoint: By: Joy


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