"water+bath"
Ward's® Pond Protist Mixture, Dry Mix
Produce a Variety of Organisms Simply by Adding Water
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Environmental Chemistry: Nitrates, Phosphates and Eutrophication - Small Group Learning Kit
Where does pollution come from? How does it change the water?
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KidWind® Solar Thermal Exploration Kit
The Solar Thermal Exploration Kit is modeled after a domestic solar water-heating system. Explore variables such as box color, light intensity, tube design, rate of water pumping, and amount of time it takes to heat the water. Learn about what makes a solar water heating system more or less efficient.
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Dissolved Oxygen Chemical Test Kit
This is a chemical test kit that measures dissolved oxygen by modified Winkler titration. The HI3810 is supplied complete with all of the reagents and equipment necessary to perform approximately 110 tests.
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Hanna Instruments Iron (Fe²⁺and Fe³⁺) Chemical Test Kit
This chemical test kit that uses the phenanthroline method to measure total iron in the medium range. This chemical test kit is supplied complete with all of the reagents and equipment necessary to perform approximately 50 tests.
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LaMotte® TesTab® Phosphate Test Kit
Refill for The Comprehensive Water Monitoring Kit 470004-240 and LaMotte® TesTab® Water Investigation Kit 470007-270
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Heat Transfer Activity
Apparatus Shows Effect of Heated Water on Other Materials
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Phosphate Chemical Test Kit
This chemical test kit that uses the ascorbic acid method to measure phosphate. It is supplied complete with all of the reagents and equipment necessary to perform approximately 50 tests.
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Ward's® Essentials Crawling Color Walking Water
Explore properties of light with primary and secondary colors.
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Edvotek® Follow That Flush: Using Biotechnology To Stop Outbreaks
Is this water safe to drink?
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VWR® Traceable® Digital pH/ORP Meter
This pH tester is ideal for wastewater, water quality and environmental applications. Compact, water resistant (IP67) instrument fits into the palm of your hand.
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Zinc Nitrate 6-Hydrate
CAS Number: 10196-18-6
Formula: ZnNO32 6H2O
Density: 2.065 g/mL
Boiling Point: 105-130°C
Freezing Point: 36.4°C
Solubility: Water and Alcohol
Shelf Life: 36 Months
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Hanna Instruments Alkalinity Test Kit
This titration-based chemical test kit determines the alkalinity concentration in samples within a 0 to 100 mg/L (ppm) CaCO₃ or 0 to 300 mg/L CaCO₃ range.
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Hanna Instruments Salinity Test Kit
This chemical test kit that measures salinity by mercuric nitrate titration. This is supplied complete with all of the reagents and equipment necessary to perform approximately 110 tests.
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Hanna Instruments Carbon Dioxide Chemical Test kit
This chemical test kit measures carbon dioxide by titration with sodium hydroxide. It is supplied complete with all of the reagents and equipment necessary to perform approximately 100 tests.