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PBHSSciMethod
Scientific Method Review
| Question | Answer |
|---|---|
| Which variable does the experimenter change and apply to the experimental group? | independent variable |
| Which variable is the end result or outcome (usually measured)? | dependent variable |
| The results or data from an experiment are first organized into one of these. | a data table |
| How many independent variables should be tested at one time? | one |
| The conclusion compares the results to the _. | hypothesis |
| Can a hypothesis be proven in science? | no |
| Can a hypothesis be rejected or disproven in science? | yes |
| What is the educated prediction of the outcome called? | hypothesis |
| This scientific explanation has lots of evidence over lots of time but can be modified or totally rejected because of new information. | scientific theory |
| A statement of how nature has been observed to behave throughout time but may not explain why is called a what? | scientific law |
| What should be done before a hypothesis is formulated (made)? | research |
| The independent variable is contained in which part of an IF, THEN hypothesis, the if, or the then? | the IF |
| The dependent variable is contained in which part of an IF, THEN hypothesis, the if, or the then? | the THEN |
| The name of the dependent variable is put on which side of the data table headings? | the right side |
| The name of the independent variable is put on which side of the data table headins? | the left side |
| So that an experiment can be run or observations can be made, every hypothesis must be this. | testable |
| Every hypothesis must contain these two variables? | the IV and the DV |
| An observation leading to a question or problem is which step in the scientific method? | first |
| The conditions that need to be exactly the same for all tests or test samples are called what kind of variables? | control variables or constants |
| Control variables are sometimes also called what? | constants |
| Except for the independent and dependent variables, how many other conditions should be held constant? | all of them |
| Test results that can be counted on are called what? | reliable |
| In the hypothesis, if plants are given extra salt, then they will grow taller, the IV is what? | extra salt |
| If plants are given extra salt to see the effect on their height, the DV is what? | plant height |
| A control group is needed for a standard for what? | comparison of results |
| The group that has the IV applied to it is which group? | experimental group |
| The group that does not have the IV and is the normal case? | control group |
| How important is a large enough sample size in an experiment? | very important |
| For the test, please remember this phrase, If IV, then __. | DV |
| For the test, please remember this phrase, If ___, then DV. | IV |
| How many ms (milliseconds) are in a cs (centisecond)? | ten |
| A kilo- of anything is how many? | 1000 |
| Because ice floats in water, its density must be which, greater than the water's or less than the water's? | less than the water's |
| The density of pure water is what? | 1.00 g/mL |
| A fluid is any material that can do what? | flow |
| How many centimeters are in one meter? | 100 |
| If an object is less dense than a fluid it is put into, what will the object do? | float |
| A centi- has the value of | 1/100 of the base |
| There are how many centiseconds in a second? | 100 |
| One liter is made of how many mL? | 1000 |
Created by:
gkarlish
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