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Science
Physical Science
Question | Answer |
---|---|
Qualitative Observations | made by gathering information that can be recorded using descriptive language |
Quantitative Observations | made by gathering information that can be recorded as a number with a measurement unit |
Inference | not a fact, but an interpretation of what the direct observations mean |
Scientific Law | describes what scientists expect to happen every time under a particular set of conditions |
Constant | part of an experiment that is held in the same condition for control and experimental |
Variable | part of the experiment that changes |
Manipulated/Independent Variable | a factor in a controlled experiment that is intentionally changed by the experimenter |
Scientific Theory | a well tested explanation for a wide range of observations or experimental results |
Inquire | to ask for information |
Dependent/Responding Variable | a resulting factor in a controlled experiment that is observed and measured to see if it changes due to the manipulation of another variable |
Experiment | a course of action completed in order to test a hypothesis |
Control | a standard to which all other levels are compared in a scientific experiment |
Matter | anything that has mass and takes up space |
Mass | matter in an object DOES NOT CHANGE |
Weight | gravity's pull on an object DOES CHANGE |
Volume | amount of space an object takes up length x width x height L x W x H |
Physical Properties | any change that alters form or appearance of matter but does not make any substance in the matter into a different substance |
Chemical Properties | a change in matter that produces one or more new substances |
accuracy | the degree to which the result of a measurement, calculation, or specification conforms to the correct value or standard |
calibration | each of a set of graduations on a measurement |
graduated cylinder | a graduated cylinder is a piece of lab equipment used to measure the volume of a liquid |
International System of Measurement | (abbreviated as SI) is the most common system of measurement used, it's known as the metric system |
liquid | one of the four states of matter |
meniscus | the dip of the liquid in a graduated cylinder |
Newton- a unit of measurement | is an SI unit of force. |
precision | exactness, the ability of a measurement to be consistently produced |
triple beam balance | is a typical mechanical balance |
unit | a particular amount of length, time money, etc. that is used as a standard for counting or measuring |