This is a hands-on lab activity about the chemical composition and conductivity …
This is a hands-on lab activity about the chemical composition and conductivity of water. Working in groups, learners will: conduct an experiment involving the process of electrolysis, prepare an experiment to better understand the process of ion exchange, discuss and research the "softness" and "hardness" of water, and use the periodic table to identify elements and learn their characteristics. Background information, a glossary and more is included. Materials needed for each student group include a 9-volt battery, two electrodes (e.g. copper strips, or two #2 pencils sharpened at both ends), electrical wire and glass beakers or ceramic saucers. This activity is part of the Aquarius Hands-on Laboratory Activities.
Between 70 and 75% of the Earth's surface is covered with water …
Between 70 and 75% of the Earth's surface is covered with water and there exists still more water in the atmosphere and underground in aquifers. In this lesson, students learn about water bodies on the planet Earth and their various uses and qualities. They will learn about several ways that engineers are working to maintain and conserve water sources. They will also think about their role in water conservation.
In this activity, students learn about ocean currents and the difference between …
In this activity, students learn about ocean currents and the difference between salt and fresh water. They use colored ice cubes to see how cold and warm water mix and how this mixing causes currents. Also, students learn how surface currents occur due to wind streams. Lastly, they learn how fresh water floats on top of salt water, the difference between water in the ocean and fresh water throughout the planet, and how engineers are involved in the design of ocean water systems for human use.
The following resource contains the external assets (or resources) to accompany the …
The following resource contains the external assets (or resources) to accompany the Sask DLC Field Crop Production B10 / B20 / B30 courses. Please note that this is not the content of the course, but the external assets used to support and deliver it.
This video is part of DIRT Workshop 2020. The DIRT workshop focuses …
This video is part of DIRT Workshop 2020. The DIRT workshop focuses on innovative practices in soil health, research guiding management recommendations, and technology available to support on-farm applications.
This resource uses text, images, maps and a laboratory exercise to explain …
This resource uses text, images, maps and a laboratory exercise to explain how differences in the temperature and salinity of ocean water cause the formation of deep-ocean currents. It is part of the Jet Propulsion Laboratory's "Ocean Surface Topography from Space" website. This material is also available on the "Visit to An Ocean Planet" CD-ROM.
In this activity, students create a model ocean over which "wind" will …
In this activity, students create a model ocean over which "wind" will be blown, and observe the relationship between the wind and the resulting ocean surface currents. The activity reinforces the concept that surface currents in the ocean are mostly caused by wind. A materials list and instructions are provided, and links to a glossary are embedded in the text.
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