If you've driven through eastern Arkansas this fall, you've probably seen combines working their way across the fields. According to the University of Arkansas System Division of Agriculture, Arkansas farmers had harvested 87% of the state's soybeans as of the Oct. 19 USDA crop progress report, well ahead of the five-year average of 69%. Corn and rice are already finished, and dry weather made it what one extension agronomist called "a very kind harvest season."
Here's what makes that a perfect homeschool moment: every one of those millions of soybeans is a seed, and each one holds a tiny baby plant packed up with its own lunch. Your kids can see that for themselves this week with a few dry beans from the pantry.
So while Arkansas farmers finish bringing in the crop, let's open up a bean, find the plant hiding inside and watch it wake up.
What your kids will learn
Grades K–5
- The parts of a seed: seed coat, baby plant (embryo) and stored food
- What a seed needs to sprout: water, warmth and air
- The plant life cycle: seed, sprout, plant, flower, fruit, and back to seed
- Sorting seeds by size, shape and color, and recording what they see
Grades 6–12
- Seed anatomy and dormancy: cotyledons, radicle and plumule
- Designing a fair germination trial and controlling variables
- Calculating germination rates and comparing them across varieties
- How soybeans and garden beans are related as legumes, and why genetic diversity matters in agriculture
This week's activity: Split a bean, then sprout one
You'll need about 16 large dry beans (lima beans are easiest to open, but pinto or kidney beans work), a bowl of water, paper towels, two zip-top bags, a ruler and a notebook.
- Soak overnight. Put the beans in a bowl of water before bed. By morning they'll be plump and soft. (These are science beans, not snacks. Raw soaked beans shouldn't be eaten.)
- Peel the coat. Pick out six beans and gently rub off the thin, wrinkly seed coat with your fingers. Talk about its job: protecting the seed.
- Split it open. Use a fingernail to open each bean along its seam, like a book. No knife needed.
- Find the baby plant. Look near the edge for a tiny curled shape with miniature leaves. A magnifying glass helps. The two big halves are the cotyledons, the stored food that feeds the sprout until it can make its own.
- Start a sprout race. Lay five soaked beans on a damp (not dripping) paper towel in each bag. Keep one bag in a warm spot and the other somewhere cooler. Everything else should stay the same.
- Check, measure and record daily. Note the day each first root appears and measure root length with a ruler. Younger kids draw what they see; older kids graph root length and calculate a germination rate for each bag. Then decide: did temperature make a difference?
Take it further: once kids have seen a bean wake up, the next question is always "Do all seeds do it the same way?" That's where our most popular kit comes in. The Heirloom Vegetable Seed Science Collection turns one bean experiment into a whole season of seed science, with 30 heirloom varieties to sort, compare and germinate, including Blue Lake Bush Beans, Bantam Sweet Corn, Detroit Red Beets, Roma Tomatoes and Sugar Pie Pumpkins.
- In the box: 30 individually packaged heirloom varieties (approximately 5,000 non-GMO, open-pollinated seeds), germination supplies and printed instructions
- Curriculum: 5 lessons for Grades K–5 or 6 lessons for Grades 6–12 (you choose at checkout), covering seed anatomy, plant families, heredity, germination trials and seed saving, emailed after purchase
- Worksheets: a seed comparison and sorting sheet, a germination trial data chart, and a life cycle diagram (K–5) or lab report template (6–12)
Older students can run the same warm-versus-cool test across bean, corn, beet and tomato seeds and see which crops are the fastest starters, a mini version of the questions crop scientists ask every season.
Just want to try one mystery seed first? The Surprise Herb or Vegetable Seed Germination Science Kit sends one surprise packet chosen from 50 popular herbs and vegetables (beans are on the list), with K–5 curriculum and observation worksheets. Part of the fun is identifying the seed by its shape, size and color.
Join the growing community
Every kit comes with an invitation to Aardvark's Seed Planting For Little Hands, our private group for families using our kits. Post a photo of your split bean, share your sprout-race results and see what young growers across Arkansas, West Virginia and Arizona are germinating this fall. Questions about a seed that won't sprout? That's exactly what the group is for.
Bring the harvest home
- Heirloom Vegetable Seed Science Collection – 30 Varieties, 5,000+ Seeds, with Curriculum & Worksheets: $85.95
- Surprise Herb or Vegetable Seed Germination Science Kit – Plant Biology Curriculum & Worksheets: $15.00
