Ecosystem in a Bottle: Week 3

Week Three
September 23, 2013

Water: water is still clear; water level is a little lower than it was last week, leading us to believe we did not succeed in creating a truly closed system; condensation is found on both the top and the bottom half of the ecosystem

Elodea: still floating; slightly brown on the edges; a new sprig is growing!

Snails: both snails stuck to the top of the bottom bottle; possible a third (baby) snail

Daphnia: still not visible, although there are plenty of the exoskeletons in the water

Seeds: all 3 bean seeds have sprouted; they have grown upwards as much as possible and are now "curving" and growing along the top of the bottle

Soil: roots are still visible in the soil; the bean casings have fallen off and can be seen on top of the soil