US$ 78.67
this pack of premium qualitative filter paper offers medium-speed gravity filtration with a 10-micron pore size at 85 gsm weight
stackable design
with identical volumes across specimens for direct mass-density comparison
and two removable stainless steel pans on a 10
and stomach demonstrates internal anatomy and organ relationships for ichthyology teaching
Ebonite Friction Rod, 30cm Biology_Botany this pack of premium qualitativeHard vulcanized ebonite rod that takes on a strong negative charge when rubbed with fur, paired with electroscopes and pith balls in classic electrostatic charging investigations.
US$ 78.67
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US$ 129.80
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