Make Compost In A Bottle Ecology Science Experiment
In this fun and easy ecology science experiment, we’re going to create a bottle of compost to explore and investigate.
- Leaves, grass clippings, spoiled produce, banana peels, or about any type of organic material that can be composted
- Empty 2-liter soda bottle
- Remove the label from the soda bottle so you can see inside.
- With adult supervision, cut the top off of the soda bottle.
- Put an inch or so of soil in the bottom of the bottle.
- Now add an inch or so layer of organic material.
- Top with soil and then add another layer of compostable material. Keep doing this until your bottle is nearly full.
- Now place the bottle in a sunny spot where it will not get knocked over or disturbed.
- Observe over the next few weeks and keep a record of your observations.
- Once your compost in a bottle experiment is complete, use your newly created nutrient rich soil to grow a plant!
How it Works:
Microorganisms in the soil eat the organic waste and break it down into smaller parts. The resulting mixture is nutrient rich and very beneficial to plants.
Make This A Science Project:
Try different compostable materials. Do some items compost faster than others?
Test and see if variables such as the size of the composting vessel or its location effect the internal temperature of the compost.
Add worms and see if they effect the compost in any measurable way.