What is Science?
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| to investigate and understand nature, explain events in nature, and use these explanations to make useful predictions | the goal of science
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| an organized way of using evidence to learn about the natural world | science
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| using one or more of the senses (hearing touch..) to gather information | observation
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| evidence collected from observations | data
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| this type of observation involves numbers or qualities that can easily be measured of counted | quantitive
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| this type of observation involves characteristics that cannot be easily counted like color or texture | qualitative
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| logical interpretation based on prior knowledge and experience | inference
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| possible explanation for a set of observations or answer to a scientific question | hypothesis
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| the idea that life could arise from nonliving matter | spontaneous generation
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| whenever possible, a hypothesis should be tested by an experiment in which only ________ variable is changed at a time. All other variables should be kept unchanged, or __________ | one, controlled
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| the variable that is deliberately changed | manipulated variable
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| the variable that is observed and changes in response to the manipulated variable is the___________ variable | responding
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| a hypothesis very well supported from evidence built up from a number of investigations | theory
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| in science, the word _______ applies to a well tested explanation that unifies a broad range of observations | theory
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| true/false-a theory is considered absolute truth, a theory may not be changed based of new information found | false
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| _______ is the science that seeks to study living things | biology
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| Name some characteristics living things share | -they are made of cells-living things reproduce-are based on a universal genetic code-grow and develop- respond to their environment-maintain a stable internal environment-as agroup, change over time
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| a collection of living matter enclosed by a barrier that separates it from its surroundings | cell
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| when two cells from different parents unite to produce the first cell of a new organism | sexual reproduction
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| reproduction in which the new organism has a single parent | asexual
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| combination of chemical reactions through which an organism builds up or breaks down material as it carries out its life processes | metabolism
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| when a group of organism changes over time | evolve
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| decimal system of measurement whose units are based on standards and are scaled on multiples of ten | metric system
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| devices that produce magnified images of structures that are too small to see with the naked eye | microscope
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| _______ microscopes produce magnifies images by focusing visible light rays. | light
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| ________ microscopes produce magnifies images by focusing beams of electrons | electron
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| theses microscopes allow light to pass through the specimen and use two lenses to from an image | compound light microscope
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| technique used by biologists to separate the different cell parts | cell fractionation
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Created by:
ebony5407