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strips etc
life cycles
and complete with load masses and wires for a comprehensive experimental setup
covering a diatonic octave scale
GEO-logic Hardness Set strips etcA Complete Kit to Communicate the Concept of Hardness in Minerals Developed jointly by experienced educators and Ward's staff geologists. Classroom tested for dependability. Designed to save valuable planning and preparation time. Students will understand the differences in mineral composition when they use our GEO logic set to investigate variations in mineral hardness. A teacher's guide and student copy masters are included for the following
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