Curated OER
Jeopardy - Earth Sciences
Questions about water, weather, geology, astronomy, and the scientific process make up this Jeopardy game. It is a pretty well-rounded set of slides, although you may want to be aware that a few of the questions are specific to the state...
Curated OER
Oceanography: Density: Designing a Hydrometer Lab
Students explore water density and design a hydrometer to measure density. This activity is part of Ocean World's home site and excellent resources and links are provided.
Curated OER
Salty Solutions
Students measure salt content in water. They determine salt content of four samples using a hydrometer.
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.
Curated OER
Making and Using a Hydrometer
Students build a hydrometer to measure the densities of fresh and salt water samples. They record the water temperature and density and use the temperature, density, and salinity conversion graph to locate the salinity. Finally,...