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Flinn Winkler Dissolved Oxygen Test Kit for environmental science greatly reduce your preparation time. Design utilizes reduced sample volumes, reduced amount of reagents and is this less expensive than alternatives.

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Product Details

Premade Winkler solutions greatly reduce your preparation time for this standard dissolved oxygen test procedure. The titration calculations have been simplified and supplied so mL of reagent will translate directly into ppm of dissolved oxygen. The microscale design utilizes reduced sample volumes and reduced amount of reagents and thus is less expensive per test than other Winkler-type test kits. Kits come with directions, background information and enough materials for 100 tests to measure oxygen concentrates from 0 to 10 ppm. Some standard laboratory glassware required.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Asking questions and defining problems
Developing and using models
Planning and carrying out investigations
Analyzing and interpreting data
Engaging in argument from evidence
Obtaining, evaluation, and communicating information

Disciplinary Core Ideas

MS-PS1.A: Structure and Properties of Matter
MS-PS1.B: Chemical Reactions
MS-LS2.C: Ecosystem Dynamics, Functioning, and Resilience
HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions
HS-LS2.C: Ecosystem Dynamics, Functioning, and Resilience
HS-LS4.C: Adaptation

Crosscutting Concepts

Patterns
Cause and effect
Scale, proportion, and quantity
Systems and system models
Stability and change

Performance Expectations

MS-PS1-1. Develop models to describe the atomic composition of simple molecules and extended structures.
MS-PS1-2. Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
HS-LS2-6. Evaluate claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem.
MS-LS2-1. Analyze and interpret data to provide evidence for the effects of resource availability on organisms and populations of organisms in an ecosystem.
HS-PS1-1. Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.
HS-PS1-2. Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.
HS-LS4-5. Evaluate the evidence supporting claims that changes in environmental conditions may result in (1) increases in the number of individuals of some species, (2) the emergence of new species over time, and (3) the extinction of other species.