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Scientific Method – Grade 7 Science Worksheets

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Scientific Method – Grade 7 Science Worksheets

Scientific Method

  • A plan for collecting, organizing and communicating data
  • The basic steps that scientists follow in revealing facts and solving scientific problems (a plan for solving a problem).
  • Six to Seven Steps – depending on the source.

scientific-method

Credit: http://scienceinvestigators.wikispaces.com/The+Scientific+Method

 

What is the Scientific Method?

  • To Make an Observation
  • To Ask a Question
  • To do Complete Background Research
  • Develop a Hypothesis
  • Test your Hypothesis
  • Analyze the Data
  • Conclusion (Report and Share)

scientific-method1

Credit: https://commons.wikimedia.org/wiki/File:The_Scientific_Method_as_an_Ongoing_Process.svg

 

Step 1: Observation

  • An observation is the beginning of everything
  • What you perceive with your senses? What can you observe about the chosen topic?

 

Step 2: Forming a Question

  • Based on your observations
  • Developing a problem that can be solved by the process of experimenting
  • Usually a “How’ or “Why” question?

 

Step 3: Complete Background Research

  • Have the subject knowledge and collect information needed to know about the subject of the experiment
  • This is used to build the hypothesis

 

Step 4: Develop a Hypothesis

  • Hypothesis is a well jotted out forecast to the answer of the certain problem
  • It is carried out based on research and prior knowledge.
  • An answer to the question framed.
  • There is no right or wrong hypothesis using our question lets develop a hypothesis.
  • Format of Hypothesis
    • Generally two formats are used: “If…then…because…” and “I think…because…”
    • Both formats include the all important “because statement” used to justify our supposed forecast.

Step 5: Conduct the Experiment and test the hypothesis

  • This is where an experiment is conducted.
  • A set of repetitive methods is developed to conduct the experiment.
  • The main aim is to test our hypothesis by collecting the facts and data
  • Includes variables – a measuring quantity that is used or changed during the experiment.
  • What are our variables used in the experiment?
  • Independent variable or dependent variable

 

Step 6: Collect and Analyze the Data

  • Organizing the data and solving the problem with the calculations
  • Explaining the data gathered from the experiment.
  • Lastly, observations, information and data are collected from the experiment.
  • Use of pictorial representation via charts, graphs, averages, percentages, etc.

 

Step 7: Conclusion

  • A summary of results, the answer to the chosen question.
    • What could go wrong and what are the possible sources of error?
    • Does your data (answer) support your hypothesis? Why or why not? What conclusion can you make about your topic
  • To check whether the data supports the hypothesis.
  • Revise
  • Yes then you made a scientific Discovery!!
  • If No make a new hypothesis and test again.
Check Point

Answer the following

  1. What is the Scientific Method?
  2. What is forming question?
  3. How to test your hypothesis?
  4. How will you analyze data?
  5. What is the process of conclusion?
Answer Key
  1. Scientific Method constitutes the following:
  • To Make an Observation
  • To Ask a Question
  • To do Complete Background Research
  • Develop a Hypothesis
  • Test your Hypothesis
  • Analyze the Data
  • Conclusion (Report and Share)

 

  1. Forming a question:
    1. Based on your observations
    2. Developing a problem that can be solved by the process of experimenting
    3. Usually a “How’ or “Why” question?

 

  1. Testing the Hypothesis
  • This is where an experiment is conducted.
  • A set of repetitive methods is developed to conduct the experiment.
  • The main aim is to test our hypothesis by collecting the facts and data
  • Includes variables – a measuring quantity that is used or changed during the experiment.
  • What are our variables used in the experiment?
  • Independent variable or dependent variable.

 

  1. Analyze the data
  • Organizing the data and solving the problem with the calculations
  • Explaining the data gathered from the experiment
  • Lastly, observations, information and data are collected from the experiment.
  • Use of pictorial representation via charts, graphs, averages, percentages, etc.

 

  1. A summary of results, the answer to the chosen question.
  • To check whether the data supports the hypothesis.
  • Revise
  • Yes then you made a scientific Discovery!!
  • If No make a new hypothesis and test again.

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