Spectrum Tubes Deuterium, glass tubes approximately 10-1/4in (260mm) long, central capillary portion approximately 3-1/2in to 4in (90-100mm) long with electrodes sealed at both ends and connected to lead wires protected by metal caps.
Separation of a mixture: physical properties of matter, the fact that matter may differ from other matter in a variety of ways, students will examine three different solids individually and observe some differences in physical properties.
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