Ecosystem in a Bottle: Week 4

Week Four

September 30, 2013

Water: water is still clear; water level does not seem to have gone down any since last week

Elodea: still floating; slightly brown on the edges; new sprig that appeared last week is about 3x longer than it was

Snails: both snails stuck to the bottle, in the water

Daphnia: still no sign of the daphnia

Seeds/ leaves: plants are still growing and "curving" along the top of the bottle; some of the leaves are yellowing

Soil: roots are still visible in the soil; the bean casings that fell off can still be seen on top of the soil