STEMvironment 7/20: Pond Water!
Today, in STEMvironment, the students analyzed samples of water from a local pond to look for insect nymphs which can be seen with the naked eye. Students learned the importance of a healthy ecosystem and that in aquatic ecosystems, the more diverse the organisms in a body of water, the more vibrant and healthy it is. Using this knowledge, students could analyze the health of the ecosystem from which the water sample was gathered.
Ask your student: What is a macroinvertebrate? (A small animal without a backbone that can be seen without a stereoscope or microscope)
MicroSTEM 7-20: Magnifying Microscopes
Today, the investigation of different kinds of magnifying devices continued. Students got the chance to go outside and collect various samples of their choice. After collection, the samples were brought inside to be analyzed with a compound light microscope. Students also reviewed the various parts of a compound microscope, and the importance of each part in the function of the microscope as a whole.
Ask your student: What similarities and differences did you notice when you were using the different tools for magnification (MicroPhone lens, hand lens, compound light microscope, and stereoscope)?
Integrated Science – Thursday, 7-20
In the morning, the students learned about water-based ecosystems. They focused specifically on the effect that keystone microorganisms have on the ecosystem and the health of the keystone microorganism Daphnia, which can reflect the health of the whole ecosystem. They designed experiments to observe the heart rate of Daphnia in various pollutants, compared to water. Then, in the afternoon, they performed their experiment. The students also had ample time to complete their project work. They finished up their posters in the morning and practiced in the afternoon. They will be presenting their work tomorrow for parents and family!