Select the statement(s) that would be considered descriptive investigations.
A scientist created a computer model of a weather system. She changed variables within the model and observed the effects on local weather patterns.
A teacher recorded and compared the grades of students who missed more than 10 percent of a school year and those who did not. The teacher found that those who missed fewer school days had higher grades than those who missed more days.
A student is observing cells under a microscope and diagramming what is seen.
An astronomer observed the orbital patterns of the moons of Saturn and relayed the data in a scientific journal.
A researcher is observing the eating patterns of alligators during winter months.
Select the statement(s) that would be considered descriptive investigations.
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The statements that would be considered descriptive investigations are:
1. A student is observing cells under a microscope and diagramming what is seen.
– This is a direct observation of cells, which fits the definition of a descriptive investigation, as it involves gathering and reporting what is seen without manipulation.
2. An astronomer observed the orbital patterns of the moons of Saturn and relayed the data in a scientific journal.
– This involves observing and documenting existing patterns in nature without conducting experiments or changing variables.
3. A researcher is observing the eating patterns of alligators during winter months.
– This is also a descriptive investigation as it involves observing and recording behavior without experimental manipulation.
The other two statements involve manipulation or comparison of variables, which aligns more with experimental or comparative investigations rather than purely descriptive ones.
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