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 is an example of a scientific investigation?
An example of a good question is, “ How does fertilizer affect plant growth ?” This is simple, measurable and can be done in the lab. A poor scientific question might be, “Where did life come from?” We can’t answer this in the lab, and there aren’t good tests to answer it either!
What is an example of 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 .
What is an example of a descriptive investigation?
Astronomers, meteorologists, and geologists often conduct descriptive investigations. Classification of leaves is an example of a descriptive investigation. Observing animal behavior in nature is another example. Descriptive investigations use careful observations and measurements to develop findings.
What are the 3 types of investigations?
There are three types of scientific investigations: descriptive, comparative and experimental .
What are the five steps in a scientific investigation?
- Define a Question to Investigate. As scientists conduct their research, they make observations and collect data. ...
- Make Predictions. Based on their research and observations, scientists will often come up with a hypothesis. ...
- Gather Data. ...
- Analyze the Data. ...
- Draw Conclusions.
What are the 7 steps in scientific investigation?
- Ask a question.
- Perform research.
- Establish your hypothesis.
- Test your hypothesis by conducting an experiment.
- Make an observation.
- Analyze the results and draw a conclusion.
- Present the findings.
What are the steps of a comparative investigation?
- Observations.
- Scientific Question.
- Hypothesis.
- Procedure.
- Variables: Independent and Dependent.
- Data, Graphs, Analysis.
- Conclusion.
What are the different parts of an experimental investigation?
Include the following: research topic or question, hypothesis, experimental procedure, materials, results (with data), and conclusion .
What are the steps of descriptive investigation?
- Make an observation about a phenomenon (qualitative and/or quantitative)
- Ask a research question.
- Hypothesize a possible answer for your question.
- Create a procedure to test your hypothesis.
- Identify what you are testing.
- Identify your control group/experimental group.
What is the benefit 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.
What is the first step in a descriptive investigation?
The tasks which form the preliminaries to a descriptive investigation are: Making careful objective observations . Asking the relevant scientific questions.
What are some types of investigations?
Scientists use three types of investigations to research and develop explanations for events in the nature: descriptive investigation, comparative investigation, and experimental investigation .
What are the six methods of investigation?
They are: methods of contrastive analysis, operational analysis, distributional analysis, immediate constituents analysis, componential analysis, transformational analysis, method of semantic differentiation .
What are investigation methods?
Scientists use different methods of investigation in different circumstances. These methods include (in no particular order) fair testing, identifying and classifying, modelling, pattern seeking, and researching.
What part of an investigation is only found in an experimental investigation?
Explanation: A group used in a study or in an experiment, which does not get treatment by the scientists and is used as a foundation to determine the functions of the other tested subjects is known as the control group . The control group is only found in an experimental investigation.
