Arkansas Fall Color Is Forecast to Peak This Week: Why Leaves Change, and How Kids Can Track a Living Tree Through Winter

Look out the window this week, Arkansas. The hickories are gold, the sugar maples and sweetgums are going orange and red, and the oaks are settling into their deep rust. According to the latest forecast from the fall color tracker More Than Just Parks, most of Arkansas is expected to reach peak color between November 4 and November 13 this year, with the Ozark and Ouachita forests peaking first and lowland spots like the Cache River and White River refuges following into next week (More Than Just Parks, updated Nov. 5, 2026).

That makes this the perfect week for a homeschool nature walk, whether you are on a trail along the Buffalo River, in a state park, or just in your own backyard. And it opens up one of the best science questions a kid can ask: why do leaves change color at all, and where does the green go?

Here is how to turn peak week into a real science lesson, plus a way to keep studying a living tree long after the last leaf falls.

The quick science: where does the green go?

All summer, leaves are packed with chlorophyll, the green pigment that captures sunlight for photosynthesis. Hidden underneath are yellow and orange pigments called carotenoids. As days get shorter and nights get cooler in the fall, trees stop making new chlorophyll. The green fades, and the yellows and oranges that were there all along finally show.

Reds and purples are a little different. Many trees, like red maples and sweetgums, make new red pigments called anthocyanins in the fall. At the same time, the tree grows a thin layer of cells where each leaf stem meets the branch. That layer slowly seals the leaf off, and eventually the leaf lets go. The tree is not dying. It is going dormant, resting until spring.

What your kids will learn

Grades K-5

• The parts of a tree: roots, trunk, branches and leaves
• How trees change with the seasons, and why some drop their leaves
• Sorting and classifying leaves by color, shape and size
• Observing, measuring and drawing changes in a nature journal

Grades 6-12

• Plant pigments (chlorophyll, carotenoids, anthocyanins) and their jobs
• Dormancy: how and why trees slow down in colder, darker months
• Separating mixtures with paper chromatography
• Designing a long-term observation and recording data over weeks and months

This week's activity: the hidden colors leaf lab

This two-part activity takes about an hour and uses things you probably already have. An adult should handle the rubbing alcohol in Part 2.

Part 1: Leaf color line-up (all ages)

1. Take a short walk and collect 10 to 15 fallen leaves in as many colors as you can find. Have an adult check each leaf first. Poison ivy turns bright red in the fall, so skip any leaves from vines or plants with three leaflets.
2. Back home, lay the leaves out in a line from greenest to reddest.
3. Have kids predict: which leaf still has the most chlorophyll? Which one is furthest along in shutting down?
4. Trace or sketch each leaf in a notebook and label its color and, if you can, its tree.

Part 2: Find the hidden yellow (adult helps)

1. Tear a handful of the greenest leaves (or a few fresh spinach leaves) into tiny pieces and put them in a small glass jar.
2. An adult pours in just enough rubbing alcohol to cover the pieces. Work in a ventilated room, keep the jar away from flames or heat sources, and keep the alcohol out of reach of little ones.
3. Cover the jar and set it in a bowl of warm tap water for about 30 minutes, until the alcohol turns green.
4. Cut a strip from a coffee filter and stand it in the jar so just the tip touches the liquid. Wait 30 to 60 minutes.
5. Pull out the strip and look closely. You should see the green band, and with luck a yellow or orange band too. That is the hidden carotenoid color that shows up in the fall.
6. Older students can repeat it with a yellow leaf and compare the bands.

Here is the catch with peak color: in two weeks, the show is over. That is where a living tree on your own table comes in. The 10-Year-Old Chinese Elm Bonsai Science Kit is a live, styled Chinese elm, about 10 years old, in an 8-inch pot. It is normal for this tree to drop leaves in fall and winter while it rests, and new growth follows. That means your kids can watch dormancy happen up close, record leaf drop through the winter, and then catch the first new buds. The kit includes curriculum and worksheets for Grades K-5 or 6-12, emailed after purchase, covering how trees change with the seasons, dormancy, transpiration and how bonsai growers keep a tree small.

Prefer a tree that flowers and fruits? The Dwarf Weeping Cherry Bonsai Tree Science Kit is a live dwarf weeping cherry in a 6-inch ceramic pot that grows indoors in bright, indirect light. Kids care for it and watch it flower and grow small cherries, with lessons on the plant life cycle, how a flower becomes a fruit, and long-term data recording.

Join the growing community

Every kit comes with an invitation to Aardvark's Seed Planting For Little Hands, our Facebook group where kids and parents share photos, ask questions and get help with anything their plants need. Post your leaf line-up, your chromatography strip, or the first new leaf on your bonsai.

Arkansas families in the group grow alongside young scientists in West Virginia and Arizona, so your kids can compare notes on how trees behave in the Ozarks versus the Appalachians or the desert. A kid in Fayetteville and a kid in Morgantown watching their elms go dormant in the same week is a pretty great science conversation.

Bring a living tree into your homeschool

Fall color only lasts a few days. A tree you care for all year keeps the lesson going through every season.

• 10-Year-Old Chinese Elm Bonsai Science Kit: $237.99, with curriculum and worksheets for Grades K-5 or 6-12
• Dwarf Weeping Cherry Bonsai Tree Science Kit: $149.99, with curriculum and worksheets for Grades K-5 or 6-12

Get the Chinese Elm Bonsai Kit