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Purpose: Students will explore the chemical and physical properties of just eight of 109 elements known. They will classify these eight elements as either metals, nonmetals, or metalloids.
Objectives Links:
4: C. Elements
Process Skills Checklist
Materials:
- test tubes
- test tube rack
- test tube brush
- hammer
- grease marking pencils
- conductivity apparatus
- carbon (C) (charcoal pieces or pencil lead)
- zinc (Zn) (lumps or wire)
- magnesium (Mg) (2cm lengths of ribbon)
- aluminum (Al) (pellets or foil)
- silicon (Si) (lumps)
- sulfur (S) (lumps)
- iron (Fe) (filings or wire)
- oxygen/nitrogen (02 and N2) (air)
Safety Concerns:
Chemical precautions.
Revision Date: November 2001
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