Nature of Science, Metric System, and Experimental Set Up
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What is parsimony? | The simplest explanation of a theory is usually the one excepted.
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| What is physical science the study of? | Matter and energy
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| Quantitative Observation | A statement that uses number data
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| What is an observation? | statement made using your senses
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| What is a theory? | Broad explanation supported because its backed by a good amount of evidence.
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| What is a scientific law? | A statement that explains WHAT happens under certain conditions, but not why it happens.
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| What is a hypothesis? | A potential answer to a questions that can be tested
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| What three things must be true about a hypothesis? | testable, tentative, falsifiable
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| True or false: A proven hypothesis becomes a theory | false, that is not a proper progression
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| Qualitative Obsevation | a statement made using characteristics
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| Direct Relationship | When the independent variable rises/lowers, the dependent variable rises/lowers
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| Indirect Relationship | When the independent variable rises, the dependent variable lowers. Or if the independent variable lowers, the depe
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| Independent variable | variable that is being tested
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| Is this a theory, law, a hypothesis, or neither: I enjoy waffles with syrup. | neither
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| Is this a theory, law, a hypothesis, or neither: If I leave a raw egg in the sun light from noon to 1:00 when temperatures are above 80 degrees it will cook. | hypothesis
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| What is a independent variable? | the variable that is tested or changed during the experiment.
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| What is a dependent variable? | your expected results of the experiment; the outcome
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| What is are the constants | the variables that must remain the same during the experiment
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| What is the proper order of our lab reports | Make an observation
Ask a question
construct a hypothesis
Write the procedure
test the hypothesis
analyze the data
communicate the results
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| If someone is wearing a Cubs jersey, is an observation they are a Cubs fan? | No, it is an inference. You are predicting.
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| If someone is wearing a Cubs jersey it is an observation to say they like cheering for losers. | No, it is an inference. You are predicting.
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| If a model train has a height of 6cm, and a length of 10cm, and the actual train has an actual length of 30 meters. What is the scale factor of the model? What is the actual height of the train? | Scale factor is 1cm:3m, so the actual train has a height of 18m.
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| What does it mean to think like a scientist? | Think...this has been on the board for three weeks!
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| Should we, or not, switch to the SI System as the official measurement system of the US? | Think...this has been on the board for two weeks!
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| If I give more fertilizer to one plant than I do another, it will grow larger than the plant without fertilizer. Is this a hypothesis, theory, or law? | hypothesis
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| Official mass measurement of the SI system | kg
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| Official length measurement of the SI System | meter
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| Official volume measurement of the SI System | liter
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| The SI system is a base ten system, as you move up in the system each movement is ten times the next, this is a __________ scale | logorithmic
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| US, Myanmar, and ____________ are the only countries that do not use the SI system | Liberia
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| What are the common six prefixes of the metric system? | kilo-hecta-deka-base-deci-centi-milli
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| What would 67.8g be in kg? | decimal would move three spots to the left making it .0678kg
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| What would 156L be in mL? | decimal would move three spots to the right making it 156000mL
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| What is an inference? | making a prediction using observations and prior knowledge
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