Introduction: Enclosed Bottle Ecosystem

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An enclosed ecosystem is an ecosystem that has no outside gasses, liquids, nor anything (other than sunlight) go in, or out, of it.

Materials needed:

a 2-liter bottle

an 8-once bottle

soil

water

6 guppies

aquatic plants

land plants

worms

Step 1: Prepare the Bottles

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Empty and clean the bottles. Take the labels off.

Step 2: Measure

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Take the smaller bottle and measure the size of it on the larger bottle.

Step 3: Cut

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On the circle you just measured, cut a hole.

Step 4: Get Some Soil

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Go outside and dig up 2-3 cups of soil and get some plants. Put it in the small bottle. Put the worms in the soil.

Step 5: Poke Holes and Pace

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Poke holes in the small bottle's bottom. Place it in the hole to make sure it fits.

Step 6: Fill Big Bottle

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Fill big bottle with water that has been sitting out for 24 hours 3/4 of the way up. put fish and plants in.

Step 7: Make a Stand

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Take three paper plates. Roll two up and tape tight. Attach to the sides of big bottle, and tape. Tape the last plate on to the bottom. Place small bottle in the big bottle.

Step 8: Observe

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Observe your ecosystem. Mine didn't get enough sunlight so it died in 5 days. Make sure it gets enough light.

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