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Density Differences part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
In this lab activity, students determine density differences of water samples with varying temperature and salinity levels. Students synthesize information to predict the effects of oil in given water samples.
Investigating Microbes in a Nature Center part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This field and classroom activity involves identification of similarities, differences, advantages, and disadvantages in survival, method of locomotion, food acquisition, and reproduction in three fresh-water microbes.