A week after collecting and feeding the cultures, we looked to see how the cultures changed. Which ones thrived? Which ones choked off their living creatures?
First we look at the straw. When we sample the culture from near the bottom of the jar, none of the groups found any life form. Then we noticed we could see small swimming critters towards the top of the culture. We tried to use some cotton to sort of "dam" the water sample and trap the critter so we could see it.
Straw:
40x
100x
Egg (boy did this one stink the place up):
40x
100x
400x
Dirt:
40x:
100x
400x
Rice
40x
100x
400x
Were you able to predict the outcomes?
No comments:
Post a Comment