Ecosystem in a Bottle: Week 2

Week Two
September 16, 2013

*A sketch of our Ecosystem in a Bottle

Water: water is still clear; we marked the water level to see if our system is really closed or if we are losing water

Elodea: still floating; slightly brown on the edges/tips 

Snails: only one snail is stuck to the side of the bottle; other snail is on the gravel

Daphnia: not visible, perhaps hiding near the bottom

Seeds: 2 beans fully sprouted (each about the length of a pencil); other seed is "hooked" and in the process of sprouting

Soil: roots are visible in the soil