Students have continued to work on their zoo projects over the last few days, but we have moved on to some new topics as well.
The first new topic we've discussed is biodiversity - how many species are present in an ecosystem. We did an activity where students "planted" different species of plants in a plot of land and they tested the effects of a plant disease attacking their crops. They should have noticed that when they planted many different species all intermingled with each other, they had better totall crop survival. When biodiversity is low, a single infected plant can spread the disease very quickly through an entire field. Hopefully they learned that saving species is not only good because they are pretty, but because having a variety of living things protects everything else from disease.
We've also started talking about extinction, both in the past and in the present. Students will continue to work on their zoo project over the next few weeks as well.
Happy Spring Break Everyone! See you on Tuesday!!!
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