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Seed Growing Experiment

Seed Growing Experiment

Min number of participants 1
Age 8+ yrs.
Safety support by adult Not required
Min duration 15 min.
Cost None (Free)
Environment Indoor / Outdoor

Plant seeds in cups or bags to test how water, light, or soil affect growth, then record daily observations — a simple science experiment that turns a windowsill into a mini laboratory.

The Essentials

Steps

  • Fill clear cups or resealable bags with a paper towel or soil
  • Set up several identical cups but change one thing in each, like the amount of water, light, or soil type
  • Plant one seed per container and label each with the variable being tested
  • Place the containers where each variable can be controlled, such as a sunny windowsill versus a dark cupboard
  • Water on a regular schedule, keeping every other condition the same
  • Check the containers every day at the same time and record what you see

Tips

  • Beans and peas sprout quickly and are easy to observe through a clear plastic bag
  • Keep a simple growth journal with dates, sketches, and measurements in centimeters
  • Take a photo each day from the same angle to build a time-lapse of the growth
  • Change only one variable per experiment so the results are easy to compare
  • Discuss what the plant needs to grow before starting, then compare it to what actually happened
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