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This sieve set lets students separate and grade soil and rock samples in order to determine the makeup of the soil strata. Each set stacks together and includes bottom pan and lid with Teacher's Guide. 6-3/4" x 3" with wire mesh bottom.
Set of four includes: #5, #10, #60, #230
Set of six includes: #5, #10, #35, #60, #120, #230
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