Term
| What are the steps of Scientific Inquiry? Draw a diagram. |
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Definition
Pose Questions
Hypothesis
Design Experiment
Collect & Interpret Data
Draw Conclusions
Communicate
There is no set path. Scientists can move back and forth between steps and always ask new questions. |
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Term
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Definition
| A factor that can be measured in an experiment |
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Term
| What is the basic unit of length, weight, mass? |
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Definition
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Term
| How do you measure the volume of liquids? Units? |
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Definition
| In a graduated cylinder, from the BOTTOM of the meniscus |
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Term
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Definition
| An investigation in which only one parameter is manipulated at a time. |
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Term
| What is SI & why is it important? |
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Definition
| International System of Units. It allows scientists to compare data and communicate with each other. |
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Term
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Definition
| The curve of the water at the surface in a graduated cylinder. |
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Term
| Find density: Volume=27 cm^3, Mass=223 g. |
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Definition
| 223 g/27 c^3=8.259259 g/c^3. Since there are two significant digits in the volume, our answer is 8.3 g/g^3. |
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Term
| How do you use the fact that water has a density of 1g/mL to predict if an object will sink or float? |
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Definition
| Items with a density greater than 1 will sink. Lower density items will float. |
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Term
| What is the SI unit for time? |
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Definition
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Term
| Describe the Celsius scale (boiling, freezing, etc.) |
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Definition
| Water freezes at 0 and boils at 100. Normal human body temperature is about 37. Scientists commonly use Celsius. |
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Term
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Definition
| How close a measurement is to the true or actual value. |
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Term
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Definition
| How close a group of measurements of the same thing are to each other. For example, if your car make a funny noise EVERY time you turn the key, it's highly reproducible. Scientists take measurements multiple time to be sure they're reproducible. |
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Term
| Why are line graphs useful? |
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Definition
| They display data to show how the responding variable changes with the manipulated variable. |
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Term
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Definition
| A line of best fit emphasizes the overall trend shown by all the data taken as a whole. |
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Term
| What is the difference between a linear and non-linear graph? |
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Definition
| A linear graph has results in a straight line. A non-linear graph does not--it may show a curve or an an increase and then a leveling off. They may still show trends. |
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Term
| What 4 safety precautions must you use when performing a lab? |
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Definition
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