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Scienece
Term | Definition |
---|---|
Qualitative | made by gathering information that can be recorded using (descriptive language)(5 senses) |
Quantitative | 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 observation means. |
Scientific Law | describes what scientists expect what the direct observation means. |
Coanstant | part of a experiment that is held the in the same condition for control and experimental. |
Variable | part of the experiment that changes. |
Manipulated Variable | a factor in a controlled experiment that is intentionally changed by the experiment. |
Scientific theory | a well tested explanation for a wide range of observations or experimental results. |
Inquiry | to ask for information. |
Dependent 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. |
Expierment | 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. |
Physical Change | when the form of the object changes but it does not make the object disappear. |
Chemical Change | a change in matter that produces one or more new substances. |
Weight | the amount of gravity on an object. |
Mass | the amount of matter in an object. |
units of mass | grams |
Calculating volume | volume = length x width x height |
Accuracy | the condition or quality of being true, correct, or exact; freedom from error or defect; precision or exactness; correctness. |
Calibration | to determine, check, or rectify the graduation of (any instrument giving quantitative measurements). |
Graduated cylinder | a narrow, cylindrical container marked with horizontal lines to represent units of measurement and used to precisely measure the volume of liquids. |
International system of measurement | international decimal system of weights and measures derived from and extending the metric system of units. |
Liquid | composed of molecules that move freely among themselves but do not tend to separate like those of gases; neither gaseous nor solid. |
Mass | usually of indefinite shape and often of considerable size: |
Matter | the substance or substances of which any physical object consists or is composed: |
Meniscus | a crescent or a crescent-shaped body. |
Newton a- unit of measurement | One newton is equal to the force needed to accelerate a mass of one kilogram one meter per second per second. |
Prescision | the state or quality of being precise. |
Triple beam balance | Triple Beam Balance is a typical mechanical balance. It has a beam which is supported by a fulcrum. On one side is a pan on which the object is placed. On the other side, the beam is split into three parallel beams , each supporting one weight. |
Unit | a single thing or person. |
Volume | the amount of space, measured in cubic units, that an object or substance occupies. |
Weight | the amount or quantity of heaviness or mass; amount a thing weighs |
Matter | Anything that has mass and volume. (takes up space). |
Pure substance | A substance made of only one kind of material having definite proportional amounts and properties. |
Mixture | Matter that consists of two or more substances not chemically combined |
Element | The simplest type of pure substances |
Compound | Two or more substances not chemically combined |
Homogeneous mixture | Two or more substances not chemically combined, but appearing to be evenly blended |
Heterogeneous mixture | Two or more substances not chemically combined, and appearing non-uniform with physically distinct substances included. |