# Science

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1. independent variable
• in an experiment, the factor that is deliberately manipulated
• what the scientist changes in the experiment
2. dependent variable
• in an experiment, the factor that changes as a result of manipulation of one or more other factors (the independent variables)
• what you measure in the experiment
3. control group
in an experiment, a group that serves as a standard of comparison with another group to which the control group is identical except for one factor
4. metric system
• kilo
• hecto
• deka
• deci
• centi
• milli
5. meter
the basic unit of length(symbol, m)
6. liter
the basic unit if volume
7. gram
the basic unit of weight
8. mass
a measure of the amount of matter in an object
9. weight
a measure of the gravitational force exerted on an object
10. scientific notation
• a method of expressing a quantity as a number multiplied by 10 to the appropriate power
• example. 24327 = 2.4327 x 104
11. standard notation
543 any normal number
12. Coefficient 13. base 14. exponent 15. Signifigant digits
• 3023(4)
• 3000(1)
• 3.000(4)
• 40000.0(6)
• 0.0002(1)
16. DRY MIX
• D = dependent variable
• R = responding variable
• Y-axis

• M = manipulated variable
• I = independent variable
• X-axis
17. science
the knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested
18. Scientific Method
• 1. Identify the problem or question
• 2. Make an observation(do research)
• 4. Design and conduct a experiment
• 5. Collect and analyze the dada
• 6. Write a conclusion
• 7. Communicate results
19. Characteristic Properties
• properties that are always the same whether the sample observed is large or small
• (density,reactivity,flamability)
20. inference
a conclusion that is based on facts but that is not the direct and absolute result of those facts
21. Qualitative Data
• Deals with descriptions.
• Data can be observed but not measured.
• Colors, textures, smells, tastes, appearance, beauty, etc.
• Qualitative → Quality
22. Quantitative Data
• Deals with numbers.
• Data which can be measured.
• Length, height, area, volume, weight, speed, time, temperature, humidity, sound levels, cost, members, ages, etc.
• Quantitative → Quantity
 Author: flashcardsss ID: 56507 Card Set: Science Updated: 2010-12-17 23:12:25 Tags: Final1 Folders: Description: Final 1 Show Answers: