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Faizan Khan
Faizan Khan
Pakistani High
Falling Leaves
Published On Jan 30th 2010
Total Comments : 10
Total Views :  686
5 People Like this!

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We all enjoy the colors of autumn leaves. Did you ever wonder how and why a fall leaf changes color? Why a maple leaf turns bright red? Where do the yellows and oranges come from? To answer those questions, we first have to understand what leaves are and what they do.
Leaves are nature's food factories. Plants take water from the ground through their roots. They take a gas called carbon dioxide from the air. Plants use sunlight to turn water and carbon dioxide into oxygen and glucose. Oxygen is a gas in the air that we need to breathe. Glucose is a kind of sugar. Plants use glucose as food for energy and as a building block for growing. The way plants turn water and carbon dioxide into oxygen and sugar is called photosynthesis. That means "putting together with light." A chemical called chlorophyll helps make photosynthesis happen. Chlorophyll is what gives plants their green color.

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Comments 10
Scorpion Hmmm... good Scorpion
Dec 19th 2014
 
 
Scorpion Hmmm... good Scorpion
Dec 19th 2014
 
 
Scorpion Hmmm... good Scorpion
Dec 19th 2014
 
 
Scorpion Hmmm... good Scorpion
Dec 19th 2014
 
 
Anam Great 1!!!!!!!!!!!! Anam
Sep 28th 2013
 
 
Anas Okay... so why does it change its color O_o.. Anas
Jan 9th 2012
 
 
fatima Soooo niiice Fatima
Dec 9th 2011
 
 
Hasan

very good information,keep it up!

Hasan
Jul 6th 2010
 
 
HBN

Plants r very essential for us without it we can't live.

Hbn
Jul 1st 2010
 
 
Izza Keep it up! sooper dooper! Izza
Feb 27th 2010
 
 

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