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Unit 1
Scientific Investigation
| Question | Answer |
|---|---|
| observation | using at least one of the five senses to gather information |
| inference | A kind of conclusion you make based on your observations & experience |
| mass | a measure of how much matter is in an object |
| volume | a measure of how much space an object takes up |
| graduated cylinder | a tool used to measure volume |
| triple beam balance | a tool used to measure mass |
| data | information collected during a scientific investigation |
| qualitative data | data that take the form of description, pictures, video, etc. |
| quantitative data | data that take the form of numbers and measurements |
| meniscus | the curve at the top of a liquid when it is in a narrow container |
| Scientific Method | A series of steps that scientists follow to answer and question or solve a problem |
| independent variable | what the scientist changes in an experiment. The cause |
| dependent variable | what the scientist measures or records as data from an experiment. The effect |
| control | the group that does not receive the independent variable, that gets "normal" conditions. Used to compare with the treatment group. |
| validity | the accuracy in the ability of an experiment to test a hypothesis |
| magnification | when an object appears larger than it is |
| mean | the average of a set of numbers |
| interval | the space between numbers in a scale |
| experimental design | the plan a scientist makes for an experiment |
| constants | conditions that stay the same in an experiment |
| hypothesis | an inference that answers a scientific question or solves a problem. Often comes in the form of If ______, then _______ |
| What kind of information goes in the blanks? If _____________, then ___________. | If the IV ..., then the DV will ... |
| The cause, the input | independent variable |
| The effect, the output, the result, the data | the dependent variable |
| question, research, hypothesis, experimental design, data collection, data analysis, conclusion, communication | Some steps in the Scientific Method |
| The minimum number of trials necessary for a valid experiment | 3 trials |
| The metric system is based on the number ____ | 10 |
| The metric system uses ________ form instead of fractions | decimal |
| How many intervals are there between 1cm and 2cm on a metric ruler? | 10 - each interval measures 1mm |
| What part of the meniscus should be used in taking measurements? | the bottom of the meniscus |
Created by:
coradesj
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