7th Science Mid

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Author:
scout723
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128304
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7th Science Mid
Updated:
2012-01-16 21:12:20
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7th Grade Science
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7th Grade Science Mid-term
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  1. What are the six steps of the scientific method and what is done during each step?
    • 1. Ask a question. How, what, when, who, which, why, or where. Answer to question should be measurable
    • 2. Do background research. Do research before you make your plan, don't repeat past mistakes.
    • 3. Construct a hypothesis. An educated guess. State it in a way that it is easily measurable and answers the original question.
    • 4. Test the hypothesis by doing an experiment. Tests whether hypothesis is true or false. One variable only. Repeat experiment several times.
    • 5. Analyze the data and draw a conclusion. Collect measurements and analyze to see if hypothesis is true or false. If hypothesis is false, start the whole process again. If true, sometimes retest in a different way to verify hypothesis.
    • 6. Communicate the results. Write a report, make a display, or publish results.
  2. What is an observation?
    Noticing objects or events using the five senses.
  3. What is a variable?
    Something that can affect a system being examined, and is therefore a factor that may change in an experiment.
  4. What is a hypothesis?
    A testable explanation for observations and questions about the physical universe.
  5. What is research?
  6. What is data?
    Information, measurements, and materials gathered from observations that are used to help answer questions.
  7. What is a control setup?
  8. What is an experimental setup?
  9. What is a conclusion?
  10. What is an experiment?
  11. What is an error analysis?
  12. What is an independent variable?
  13. What is a dependent variable?
  14. What are constants in an experiment?
  15. On which axis is the independent variable graphed?
    Independent variable is graphed on the X-axis.
  16. On which axis is the dependent variable graphed?
    The dependent variable is graphed on the Y=axis.
  17. What are the four major parts of a graph?
    Variables, data, title, units.
  18. What is the difference between an observation and an inference? Give examples.
    An observation is noticing objects or events using the senses and inference is a logical explanation or conclusion based on observations and / or facts.
  19. Volume of a liquid would be measured in what units?
    mililiters.
  20. Volume of a solid is measured in what units?
    Cubic centimeters.
  21. What is the meniscus?
    The curved line at the top of the water.
  22. When measuring the volume of a liquid in a graduated cylinder, what part of the meniscus do you read?
    The bottom.
  23. What is matter?
    Anything that has volume and mass.
  24. Are gases matter?
    Yes because gas is the state in which matter changes into both shape and volume.
  25. What are the three major categories that the periodic table is broken down into?
    Metals, non-metals and mettaloids
  26. What number on the Periodic Table identifies the element?
    The atomic number.

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