Curated OER
The Blue Bottle: An Example of Teacher-Guided Inquiry
Learners observe a demonstration in which a bottle containing a colorless solution is mixed, turns blue, then becomes colorless again. They record observations, form and discuss hypotheses, and draw a conclusion based on the evidence.
Curated OER
"Pandemic" A Disease Simulation
Students use small test tubes with water, salt and a silver nitrate solution to simulate the spread of infectious disease contracted the exchange of bodily fluid. They problem solve to track the original source of infection.
Curated OER
Salinity
Learners define and discuss salinity, conduct classroom experiment to determine salinity of water sample by using hydrometer, record predictions, and demonstrate understanding of how salinity influences object's ability to float in water.