Science Exam Review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Hypothesis | Hypothesis is testable AND eplains the expected relationship between the independent and dependent variables. Often written in the "if...then..." format
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Independent Variable | manipulated part of experiment, the ONE "thing" you are testing, x-axis, "If..." part of hypothesis
MIX- manipulated, independent, x-axis
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Dependent Variable | responding part of experiment, the outcome, the measurable data, might have more than one, y-axis, "Then..." part of hypothesis
DRY- dependent, responding, y-axis
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Controlled Variables | conditions kept the same between control and experimental group
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Control Group | "standard", normal conditions-> used as baseline/comparison
Independent variable NOT applied
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Experimental Group | test group, Independent variable applied
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Qualitative Observations | using specific and detailed adjective to describe
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Quantitative Observations | using a number (measurement or count)
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Inference | educated guess based on observations
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What is the purpose of experimentation? Why is no experiment a failure? | The scientific method is a general set of guidelines that uses critical thinking to solve problems. TO LEARN SOMETHING! TO LEARN ABOUT SCIENCE!
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Know the difference between Scientific Theory and Scientific Law | Scientific Law describes WHAT happens in nature
Scientific Theory describes the process by which it happens (HOW)
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Precision | how close two measurements are to each other
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Accuracy | how lose measurements are to the target value, based on how well the equipment is calibrated, and IS IT CORRECT?
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Length SI unit, instrument used | Meters (M); Meter stick
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Area | Meters Squared (M2); Meter stick
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Volume (Solid) | Meters Cubed (M3); Meter stick
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Volume (Liquid) | Cubic Centimeters (cm3) Liters (L) Milliliters (mL); Graduated Cylinder
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Mass | Kilograms (kg); balance
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Density | g/mL g/cm3; g/ml-> triple beam balance
g/cm3-> graduated cylinder/meter stick
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Time | Seconds (s); stopwatch
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Temperature | Kelvin (K); thermometer
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Describe what makes a precise measurement ad accurate measurement? |
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What do you need besides a number when you are measuring? |
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In a given measurement, which digit is estimated? |
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Know what a graph should include and be able to reference the TALKS rubric. |
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How do graphs relate to experiments- in what way do they relate to the IDV and DV? |
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What is the order of scientific thingies from least to most reliable? | Least reliable-> Hypothesis (formal inference made prior to experimentation)
Moderate reliability-> Conclusion (results of ONE experiment)
Most reliable-> Scientific Theory, Scientific Law (results of MANY repeated experiments, well established)
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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