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| study of matter and changes that it undergoes |
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| any substance that has a definite composition |
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| anything that has mass and takes up space |
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| a measurement that reflects the amount of matter |
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| air we breath, clouds, layer we see when we are in an airplane |
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| air we breath, clouds, layer we see when we are in an airplane |
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| ozone is located and formed |
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| 1st person to begin measuring ozone. Dobson measured levels of more than 300 Dobson units. |
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| a measurement of the amount of matter and the effect of the Earth's grav. pull on that matter. Weight changes. Mass does not change |
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| something that you can see without a microscope |
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| can't see it with a microscope |
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| most carbon-containing chemicals |
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| matter that does not contain carbon |
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| the behavior and changes of matter and the related energy changes |
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| components and composition of substances |
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| matter and processes of living organisms |
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| a systematic approach used in scientific study. It is an organized process used by scientists to do research and it provides a method for scientists to verify the work of others |
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| the act of gathering info |
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numerical
Ex. temperature,pressure, volume, density |
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| describe something , senses |
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| a tenative explanation for what has been observed |
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| a set of controlled observations that test a hypothesis. We use experiments to test variables. |
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| variable you plan to change |
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| changes in a response to a change in the independent variable |
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| a factor that is not changed through the whole experiment |
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| changes in a response to a change in the independent variable |
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| standard for your experiment |
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| a judgement based on the info obtained. A hypothesis is never proven. It is either supported or not supported . |
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| a visual, verbal, and/or mathamatical explanation of data. Ex. graph |
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| an explanation supported by many experiments . It can be modified due to new conclusions |
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| a relationship in nature that is supported by many experiments . A scientific law will never change. |
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| seeks to gain knowledge for the sake of knowledge itself |
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| research undertaken to solve a spec. prob. |
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| experiments come out with unexpected results ; Ex. Alexander Fleming- discovered that lysozyme helps protect the body from bacteria and disvoered penicillium 2- Wallace Carothers and his team discovered nylon |
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| practical use of scientific info ; concerned with human life and the world around us |
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