Hands-on Plant Life Cycle Science Activity for Kids
Help kids explore plant biology up close with this engaging Bean-in-a-Bag Seed Germination Experiment—a classic STEM activity that turns an ordinary plastic bag into a mini greenhouse. Instead of waiting and wondering what’s happening beneath the soil, children can watch the entire sprouting process unfold right before their eyes.
This printable bundle includes everything needed to set up the experiment, observe changes each day, and understand the four stages of plant growth: seed → germination → sprout → seedling. Perfect for homeschool families, classrooms, STEM units, or an introductory botany lesson.
What’s Included
✔ Step-by-step experiment directions
✔ Science Behind the Experiment (Explanation Page)
✔ Daily Observation Sheets
✔ “What My Seed Needed to Grow” Reflection Page
What You’ll Receive
✔ 1 PDF file (10 pages)
✔ Printable on 8.5x11" paper
✔ Instructions + science explanation + observation sheets + final reflection pages
✔ Instant download (no physical item)
FAQ
How long does it take the seeds to sprout?
Most beans sprout within 2–5 days, depending on temperature and sunshine.
Does the bag need to stay sealed?
Yes. Sealing helps trap moisture and warmth, creating the greenhouse effect described in the printable.
Do I need a special type of bean?
Not at all—common dry beans (black beans, lima beans, kidney beans) all work well.
What grade levels is this activity for?
Ideal for PreK–3rd grade, but fun for older kids too as part of broader plant biology lessons.
Can I reuse the observation sheets?
Yes! Print multiple sets for daily journaling, multiple seeds, or whole-class participation.
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