Salinity and Deep Ocean Currents Scientific Investigation
Before you begin the scientific investigation below, make sure to download the Salinity and Deep Ocean Currents Scientific Investigation Report. As you complete this scientific investigation, fill in any needed information on the report template. If you need more information about each section of the report, please visit the Developmental Module.
This scientific investigation is available below or in a printable version.
Introduction
Ocean currents are formed many ways. For example, wind moves the water along the surface to form wind-driven currents or surface currents. Deep ocean currents are caused by differences in water temperature and salinity.
Objectives
In this scientific investigation, you will:
Hypothesis
Using the Procedure and Data Collection section below, read through the procedural information for this scientific investigation. Based on your understanding of the procedure, develop your own hypotheses which describe your expected results. Record your hypotheses in the Hypothesis section of your Salinity and Deep Ocean Currents Scientific Investigation Report.
Equipment and Materials
Procedure and Data Collection
WARNING: It is recommended that you conduct this scientific investigation in an area where water spills will not cause damage. In addition, you should not conduct this experiment near any electrical devices.
Data
Use the spaces provided in the Data section of your Salinity and Deep Ocean Currents Scientific Investigation Report to record your data from this scientific investigation.
Data Analysis
In the Data Analysis section of your Salinity and Deep Ocean Currents Scientific Investigation Report, provide responses to the following questions. Make sure to completely answer each question.
Conclusion
Using the Conclusion section of your Salinity and Deep Ocean Currents Scientific Investigation Report, compose three to four sentences describing an overall conclusion about the relationship between salinity, density, and deep ocean currents. Were your hypotheses true or false, and how do you know? Use the data and notes that you collected from your simulation experience to form your conclusion. Make sure that you include information that you gained from data analysis to support your conclusion.
Experimental Sources of Error
On your Salinity and Deep Ocean Currents Scientific Investigation Report, provide responses to the following questions: Are there any sources of error? If so, what are they, and what could be done to minimize error?
Once you have completed the Salinity and Deep Ocean Currents Scientific Investigation Report, please submit your work to the dropbox.