Limitation of comparative investigation is that
when it is done on a huge population, huge amount cost is required
. Explanation: Benefit of comparative investigation is that we can get descrete information about specific breed or species.
What is a comparative investigation?
Comparative Investigation:
Involve collecting data on different populations/organisms
, under different conditions (ex. Times of year, locations), to make a comparison. Example – Using a hand lens to examine the color and texture of four different rocks.
Which is a limitation of comparative investigations quizlet?
Which is a limitation of comparative investigations?
They give results that are usually not repeatable by other scientists
. They might show variable relationships that are not actually cause and effect. They can usually only be conducted in labs instead of in natural environments.
What is always included in a comparative investigation?
A comparison
is always included in a comparative investigation.
Which statements best describes comparative and descriptive investigations?
Terms in this set (10) Which statement best describes comparative and descriptive investigations? They both include
a question, procedure and conclusion
.
What is a benefit and limitation of comparative investigations?
Limitation of comparative investigation is that
when it is done on a huge population, huge amount cost is required
. Explanation: Benefit of comparative investigation is that we can get descrete information about specific breed or species. It is important for the study of behaviour of many organisms.
Which kind of investigations are meant to provide large amounts of information?
Comparative investigations
provide large amounts of information and use a wide range of variables.
What are 3 methods of investigation?
There are three types of scientific investigations:
descriptive, comparative and experimental
.
What are 3 types of investigations?
There are three types of field investigations—
descriptive, comparative, and correlative
.
What are the steps of a comparative investigation?
- Observations.
- Scientific Question.
- Procedure.
- Data, Graphs, Analysis.
- Conclusion.
What is an example of an experimental investigation?
Experimental investigations have a control group which does not receive any treatment. For example,
a student might conduct an investigation to answer
the question “What is the effect of light color on plant growth?” In this experiment, the variable color of light is changed by the student.
What do descriptive and comparative investigations have in common?
Descriptive Investigation:
Involve describing and/or quantifying parts of a natural system
. Example – observing cells under a microscope and diagramming what is seen. Comparative Investigation: Involve collecting data on collecting data on different populations/organisms, under different conditions (ex.
What are the three types of variables in scientific investigation?
A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables:
independent, dependent, and controlled
.
Does a descriptive investigation include variables?
A descriptive investigation includes
a question but no hypothesis
. Observations are recorded, but no comparisons are made and no variables are manipulated.
Why are descriptive investigations repeatable?
Descriptive investigations are
not repeatable because
they are based only on observations made at a single point in time. The results may vary at a different time. In addition, descriptive investigations do not contain variables that may indicate cause-and-effect relationships.
What is the goal of a descriptive investigation?
The goal of descriptive investigation is
to describe
. It should provide factual, accurate and systematic descriptions of phenomena without attempting to infer causal relationships. It does not answer questions about the how, when, or why a particular phenomenon occurred.
