| http://www.w3.org/ns/prov#value | - r making up solutions to a known volume ??? ??? ??? funnel for pouring liquid or other substance through a small opening ??? ??? ??? utility clamp used to hold laboratory glassware ??? ??? ??? mortar and pestle used to grind up materials ??? ??? ??? volumetric pipet measures small amounts of liquids accurately ??? ??? ??? striker used to light bunsen burner ??? ??? ??? rubber stopper used to cover
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