Curated OER
Take a Dip: The Water in our Lives
Learners collect water samples from local freshwater sources and test for pH, dissolved oxygen, nitrates, macroinvertebrates, phosphates, and coliform bacteria in order to determine water quality for each source.
Curated OER
Fisheries Research Methods
Learners explore how scientists keep track of fish populations and why it is important to do so. They describe three methods currently used to sample fish populations. They participate in activities to simulate several of the sampling...
Curated OER
Statistical Specimens
Third graders are introduced to statistical vocabulary. They complete an online activity that asks them to calculate the mean, median and mode for a set of data.