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Time frame: one day, followed by weeks of observation |
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Space needed: sunny window sill |
Objective:
- To properly construct a terrarium
- To observe life in a "closed ecosystem"
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Materials needed:
- brandy snifter, fish bowl or large bottle
- potting charcoal
- potting soil
- pea gravel or crushed rock
- plants
- water
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Introduction:
The world around you including plants, air, water, soil and animals makes up what is often
called an "ecosystem." A terrarium is an example of an ecosystem which is closed or
self-container. Within the terrarium is everything that a plant needs: soil, water and
air. |
Methodology:
- Choose the 3 to 5 plants for the terrarium from Table 1. To the container, add a 1/2
inch layer of gravel. Add a 1/4 inch layer of potting charcoal. Add 4 inches of
potting soil.
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Planting is next. Using a spoon or pointed stick, open a place for each plant, set it in
and press the soil back around the roots.
- Lightly water each plant. DO NOT OVERWATER!
- Close the container. If too much water accumulates in the container, it can be opened for
short periods of time.
- Place the terrarium anywhere in indirect sunlight.
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