Today we investigated ions in solution. Most compounds in the hydrosphere are dissolved into water. this means that water is a mixture of many different substances.
Scientists can measure the ions in the water and also extract chemicals from them.
The Salt Works at Grassmere Lake, near Seddon, is an example of humans taking a needed chemical (salt) from the water.
We carried out an experiment to show ions- we added barium nitrate to copper sulfate and made a milky white powder (barium sulfate).
I also re-reminded all students about their school username and password and showed how to access the Caption site to complete homework (due tomorrow).
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