Homeschool Science: Build A Mini Ecosystem


Building a miniature ecosystem is a wonderful way to observe how light and photosynthesis help to keep plants and animals alive. This project is super simple, easy to put together, and a great learning experience for your kids. Here’s how it works:

What you need:

  • 2-liter bottle
  • Elodea (small plant that should be available at aquarium/pet store)
  • A couple of small snails (should be available at aquarium/pet store)
  • Optional: 1 feeder guppy (should be available at aquarium/pet store)
  • Water
  • Small rocks
  • Dead leaf

What to do:

  • Fill the bottle ¾ of the way to the top with water. Let the water sit out for 24 hours to let the chlorine in it evaporate (otherwise your snails will die).
  • Add about an inch worth of rocks to the bottom of the bottle and the dead leaf.
  • Add the elodea, make sure your separate the pieces if they are clipped together.
  • Add the snails and the fish.
  • Leave the bottle to sit for 24 hours and then put the top on. Put it somewhere that get direct sunlight for a couple of hours a day. You should start to see bubbles of oxygen from the elodea, snail eggs, new leaves on the plant, and other little life activities.

Enjoy and don’t forget to check out SD Accelerate’s free trial.