[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-487120-105":59,"doc-detail-487120-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","why-leaves-change-color-solve-each-problem","Why Leaves Change Color - Solve Each Problem","","Leaves change color because chlorophyll, the green substance that soaks up sunlight and helps a tree make food, is used during summer and fades when fall brings shorter days and less sunlight. Once chlorophyll stops, other pigments reveal themselves: carotenoids create yellow and orange, while anthocyanin can produce reds and purples and is made in fall, influenced by sunny days and cool nights. Leaves drop when a corky layer seals and snips them loose, helping the tree save water for winter.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/why-leaves-change-color-solve-each-problem/487120/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/why-leaves-change-color-solve-each-problem/487120.png","ImageObject",300,407,{"name":92,"@type":93},"dawugda","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-05","2026-09-30",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What does chlorophyll do for a tree?","Question",{"text":112,"@type":113},"Chlorophyll soaks up sunlight and helps the tree make its food.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Why do leaves stop looking green in fall?",{"text":117,"@type":113},"Fall brings shorter days and less sunlight, so the tree slows down and stops making chlorophyll, and it fades away.",{"name":119,"@type":110,"acceptedAnswer":120},"How do trees produce red and purple leaf colors?",{"text":121,"@type":113},"Reds and purples come from anthocyanin, which the tree makes fresh in fall; bright conditions like sunny days and cool nights can increase the red color.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},487120,1790926653,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":34,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144,"preview_page_count":4},3985747870947,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","Picture a maple tree on a crisp October morning, its leaves glowing red and gold like a bonfire that never burns out. You crunch through a pile of them on your way to school, and the whole street smells like autumn. Buthere's a puzzle: those bright colors didn't just appear out of nowhere. Some of them were hiding inside the leaves all summer long!  \nTo understand that hiding trick, you first have to meet the busiest worker inside every leaf. It's called chlorophyll, a green substance that soaks up  \nsunlight and helps the tree make its food. Chlorophyll is so green and so plentiful that it covers up every other color, the way a bright green marker would cover up a faint yellow one. All summer, while the tree gobbles up sunshine, that green is the only color you get to see.  \nThat green can't last forever, though, and the change begins when the days grow shorter in fall. With less sunlight, the tree slows down and stops making chlorophyll, so the green fades away. Now the colors that were there the whole time finally get their moment to shine. Yellows and oranges, made by pigments called carotenoids, are the same ones that make carrots and bananas their color.  \nYellow and orange aren't the only stars of the autumn show, because reds and purples join the party too. These come from a pigment called anthocyanin, and here's the surprise: the tree makes it fresh in the fall, not during summer. That's why some years are brighter than others, since sunny days and cool nights help trees pump out extra red. A rainy, warm autumn can leave the woods looking dull and brown instead.  \nAfter the fireworks of color come and go, the leaves finally let go and drift to the ground. The tree grows a thin, corky layer where each leaf is attached, and that seal snips the leaf loose like scissors. Dropping its leaves helps the tree save water and survive the cold, quiet winter ahead. So the next time a red leaf lands at your feet, remember that its color was waiting inside all along, just for this.  \nWhy Leaves Change Color  \nName:  \n\n| Solve each problem.\u003Cbr>Use the article to answer the question.\u003Cbr>1) What does chlorophyll do for a tree?\u003Cbr>A. It seals off each leaf so it can drop.\u003Cbr>B. It makes the tree's leaves turn red in fall.\u003Cbr>C. It stores water for the tree during winter.\u003Cbr>D. It soaks up sunlight and helps the tree make food. |  |  |  |  | Answers\u003Cbr>1.  \u003Cbr>2.  \u003Cbr>3.   |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| 2) What is the main idea of this passage?\u003Cbr>A. Red maple trees are the brightest trees in October.\u003Cbr>B. Leaves fall so trees can stay alive through cold winters.\u003Cbr>C. Trees turn green in summer to make food from sunlight.\u003Cbr>D. Autumn colors come from pigments, some hidden all along and some made in fall. |  |  |  |  | 4.  \u003Cbr>5.  \u003Cbr>6.  \u003Cbr>7.   |  |  |  |  |  |\n| 3) What causes a tree to stop making chlorophyll?\u003Cbr>A. The days grow shorter and there is less sunlight.\u003Cbr>B. Rain and warm nights arrive in the fall.\u003Cbr>C. The tree grows a corky layer at each leaf.\u003Cbr>D. The tree needs to save water for winter. |  |  |  |  | 8.  \u003Cbr>9.  \u003Cbr>10.   |  |  |  |  |  |\n| 4) Why does a tree drop its leaves in autumn?\u003Cbr>A. It helps the tree make more chlorophyll in spring.\u003Cbr>B. It helps the tree save water and survive the winter.\u003Cbr>C. It helps the leaves soak up more sunlight.\u003Cbr>D. It lets the tree turn its leaves red and purple. |  |  |  |  |  |  |  |  |  |  |\n| 5) How does a leaf finally come loose from the tree?\u003Cbr>A. A thin, corky layer seals the leaf and snips it free.\u003Cbr>B. The green chlorophyll dries up and lets it fall.\u003Cbr>C. The wind rips the leaf off during a cold storm.\u003Cbr>D. The tree pushes water into the leaf until it drops. |  |  |  |  |  |  |  |  |  |  |\n| 6) According to the passage, why do we only see green leaves in summer?\u003Cbr>A. Sunlight burns away the reds and purples in summer.\u003Cbr>B. Chlorophyll is so plentiful it covers up every other color.\u003Cbr>C. Anthocyanin has","cbCaiiuanGbHQ4ZS","https://ap.wps.com/l/cbCaiiuanGbHQ4ZS","pdf",99444,"English","# Why Leaves Change Color\n## Questions 1-10","[{\"question\":\"What does chlorophyll do for a tree?\",\"answer\":\"Chlorophyll soaks up sunlight and helps the tree make its food.\"},{\"question\":\"Why do leaves stop looking green in fall?\",\"answer\":\"Fall brings shorter days and less sunlight, so the tree slows down and stops making chlorophyll, and it fades away.\"},{\"question\":\"How do trees produce red and purple leaf colors?\",\"answer\":\"Reds and purples come from anthocyanin, which the tree makes fresh in fall; bright conditions like sunny days and cool nights can increase the red color.\"}]","Why Leaves Change Color - Solve Each Problem | PDF",1790807861,18]