Composting Experiment and Activity for Kids
In this composting activity, your children can build two mini-compost "bins" and see how decomposition happens. Plus, they'll compare compostable and non-compostable materials. This is a good Spring activity, Earth Day activity, or gardening lesson.
Cost: $2
Materials
- 2 Large jars
- Soil
- Vegetable and fruit scraps that can be composted
- Yard waste - leaves, twigs, grass, pinecones, etc.
- Water
- Gardening gloves and a trowel
- Non-compostable items (plastic bottle cap, a piece Styrofoam egg carton, a plastic lid, etc.
Instructions
- In both clear containers, place a few pieces of small twigs into the bottom of each jar. Add some on top of the twigs if you have a few dead leaves.
- Add a few blades of grass, if available.
- Add soil from your garden. You can also use bagged potting soil.
- Add a large piece or two of fruit or vegetables in one jar.
- Add a piece of plastic or Styrofoam in the other jar.
- Top with more soil and grass clippings.
- Pour a little water on top. Start with ΒΌ cup of water. Add more if needed.
- Place in a safe place and observe for several days or weeks. You may want to place the jars outside in an area protected from rain. Pictured here are our two mini-compost bins. The one on the right has a plastic bottlecap. This photo was after 6 months outside.
