Grade 7 Pure Substances and Mixtures Review

							                                        SCIENTIFIC METHOD
A term that refers the guiding principles of scientific research and experimentation.

1. Problem
    What are you testing?
    The question that needs to be answered.
    Written as a question.

2. Research
    What you already know about the problem to help you make a hypothesis and design a fair test.
    Use background knowledge, notes, textbooks, internet and parent/teacher.
    Written in full sentences.

3. Hypothesis
    What do you think is going to happen?
    Use the research to help you answer the question.
    Written in 1 sentence.

4. Materials
    What equipment/materials do you need to perform the experiment?
    Bullet form.

5. Variables
    Test variable = what are you testing.
    Control Variables = what needs to stay the same throughout the tests to make it a “fair test”.

6. Procedure
    List of steps you follow when doing an experiment.
    Numbered steps in order, like instructions.

7. Observations
    What happened during the experiment?
    Quantitative observations = measurement, count, score, time, weight, height, etc. , written as a
     number.
    Qualitative observations = using your 5 senses (What did you see, hear, smell, feel, taste), written
     in words – a description.
    Written in table and graph form.

8. Conclusions
    Was your hypothesis correct, why or why not?
    Summarize your observations and explain what they mean – use your research to help you.
    Were there any errors that were made and/or things you would have done differently next time
     you do the experiment?
    How can the information found in this experiment be used in the real-world?
    Written in full sentences and paragraph form.