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Braile - Terms Ch. 1
Terms
| Question | Answer |
|---|---|
| Science | the study of the natural world |
| Skills Scientists use | observing, inferring, predicting to learn more about the natural world |
| Observing | using one or more senses to gather information |
| Inferring | explaining your observations based on reasoning from what you know |
| Predicting | making a forecast of what will happen in the future based on past experiences or evidence |
| Physical Science | the study of matter, energy and the changes they undergo |
| Two main branches of physical science | Chemistry; Physics |
| Chemistry | the study of the properties of matter and how matter changes |
| Physics | the study of matter, energy, motion and forces, and how they interact |
| Scientific Inquiry | the different ways scientist study the natural world. |
| Processes of Scientific Inquiry | posing questions, developing hypotheses, designing experiments, collecting data, interpreting data, drawing conclusions and communicating ideas and results |
| hypothesis | a possible answer to a scientific question or explanation for a set of observations |
| parameter | a factor that can be measured in an experiment |
| manipulated variable | the variable in an experiment that is changed on purpose |
| responding variable | the variable parameter that is expected to change because of the manipulated variable |
| controlled experiment | an investigation in which only one parameter is manipulated at a time |
| data | the facts, figures and other evidence gather through observations. |
| communicating | sharing ideas and conclusions with others through writing and speaking |
| model | a picture, diagram computer image or other representation of an object or process |
| scientific theory | well-tested explanation for a wide range of observations or experimental results |
| scientific law | statement that describes what scientists expect to happen every time under a particular set of conditions |
| SI | Internation System of Units; an expanded metric system used by scientists |
| meter | basic unit of length in SI |
| weight | the measure of the force of gravity on you. |
| newtons or pounds | weight units |
| mass | the measure of the amount of matter an object contains |
| kilogram | basic unit of mass in SI |
| volume | the amount of space an object takes up |
| cubic meter | basic unit of volume in SI |
| meniscus | the curve of the top surface of water |
| density | mass per unit volume |
| density formula | density = mass/volume |
| kilogram per cubic meter kg/m cubed | basic unit of mass in SI |
| second | basic unit of time in SI |
| Celcius Scale | temperature scale where water freezes at 0 degrees; water boils at 100 degrees |
| Kelvin Scale | another temperature scale |
| kelvin | basic unit of temperature in SI |
| absolute zero | the temperature 0 K on the Kelvin scale |
Created by:
elle63
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