Vernier Software and Technology
Vernier Software & Technology

Investigating Dissolved Oxygen

Introduction

Dissolved oxygen is one of the primary indicators of the quality of an aquatic environment. Oxygen enters water from the surrounding air, as a product of photosynthesis, and as a result of rapid movement of water. A Dissolved Oxygen Probe can be used in a wide variety of tests or investigations to determine dissolved oxygen concentrations (DO) and changes in dissolved oxygen concentrations.

Objectives

In this Preliminary Activity, you will gain experience using a Dissolved Oxygen Probe as you determine the DO level of a water sample provided by your teacher.

After completing the Preliminary Activity, you will first use reference sources to find out more about dissolved oxygen issues in the environment before you choose and investigate a researchable question dealing with dissolved oxygen. Some topics to consider in your reference search are:

  • water pollution
  • eutrophication
  • thermal pollution
  • photosynthesis
  • cellular respiration

Sensors and Equipment

This investigation features the following Vernier sensors and equipment.

Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?

Investigating Biology through Inquiry

See other experiments from the lab book.

1Buffer Investigations
2Diffusion
3Investigating Osmosis
4Chemistry of Membranes
5Investigating Protein: The Bradford Assay
6ATesting Catalase Activity (O2 Gas Sensor)
6BTesting Catalase Activity (Gas Pressure)
7Introduction to Biofuels: Enzyme Action
8Analysis of Enzymes using Tyrosinase
9Cell Respiration
10Sugar Metabolism with Yeast
11Fermentation with Yeast
12Photosynthesis by Chloroplasts
13Transpiration of Plants
14Plant Pigments
15Heart Rate
16Investigating Dissolved Oxygen
17Investigating Primary Productivity
18Modeling Population Dynamics
19Long Term Water Monitoring
20Evolution of Cellobiase
21Introduction to Molecular Evolution
22Evolution of Yeast

Investigation 16 from Investigating Biology through Inquiry Lab Book

<i>Investigating Biology through Inquiry</i> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

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