Bottle Biosphere The following activity is an assesment variation off of the core experiment " Making a Bottle Ecosystem " Materials bottle (2L pop, gallon glass jar, 5 gallon water bottle or whatever else you can find) plants(algae, duck weed, small house plants, weeds, or whatever they can find), animals (fish, crickets, snails, pill bugs, or worms soil rocks water something else that the student wants to put in it.
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