Wednesday, December 17, 2014

Separating iron, salt, and sand

As part of an ongoing study of water, filtration, compounds, and mixtures, students are currently working in small groups to design a procedure to separate this:

A mixture of sand, salt, and iron

Into this: 
Separated samples of iron, salt, and sand

It requires a deepening understanding of many of the concepts we've been working with this year, including filtration, mixtures, and evaporation. It also requires brainstorming a plan with their partners, as well as crafting a detailed procedure to follow. 

Checking out the magnified structures of iron, salt, and sand 

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