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| What is the goal of science?? |
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Definition
| investigate and understand nature, explain events in nature, useful predictions |
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Definition
| using evidents to learn about natural world |
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| using one or more of the senses |
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| The information gathered from observation is called______? |
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Definition
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| quantitative and qualitative |
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Definition
quantitative-numbers or measuring
qualitative-color or texture |
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| logical interpretation based on prior knowledge or experience |
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is a possible explanation for a set of observations or a answer to a question
can be tested |
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| A hypothesis is only useful if it can be _______? |
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| T/F A hypothesis should be stated in a way that it can never be proved wrong? |
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Definition
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Term
| 3 ways which hypotheses may arise? |
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Definition
prior knowledge
logical inferences
imaginative guesses |
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| What do Science assume can be discovered through scientific inquiry? |
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Definition
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| Idea that life can arise from nonliving matter is called ______? |
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| When a variable is kept unchanged in an experiment, it is called a _______variable? |
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Definition
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Controlled experiment?
or Control |
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Responding Variable
OR
Variable |
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Definition
| variable that abserve/change |
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| Why do scientist assume that experimental results can be reproduced? |
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Definition
| b/c nature behaves in a constant matter |
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Term
| What did Anton Van Leeuwenhoek discover |
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Definition
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Term
| Why do scientists usually try to work without animals noticing them? |
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Definition
| ethical considerations prevent certain experiments |
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| The theory that new organisms come from existing organisms? |
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Definition
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| is the science that seeks to understand the living world |
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| collection of living matter enclosed by barriers surrounded by a barrier |
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| Living things are based on a universal______? |
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Definition
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| Why dose an organism need energy and a constant supply of materials? |
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Definition
| to grow develop and reproduce |
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Definition
| chemical reactions which break down materials and energy just to stay alive |
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Definition
| keep internal conditions stable |
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| A group of organisms that change over time are said to_______? |
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| largest level of biological study is the _______? |
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| What system of measurements do most scientists use? |
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Definition
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Definition
| produce magnified images to small for the naked eye |
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| Compound light microscopes |
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Definition
| allow light to pass through specimen and use 2 lenses to form an image |
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Term
| How do chemical stains make light microscopes more useful? |
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Definition
| allow light to pass through specimen and use 2 lenses to form an image |
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Term
| two types of electron microscopes |
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Definition
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| Samples be prepared for observation by an electron microscope |
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Term
| A group of cells grown in a nutrient solution from a single original cell is called___? |
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Definition
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Term
| What technique to biologists use to separate on part of a cell from the rest of the cell______? |
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Definition
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Definition
well tested hypothesis that still may be revised or replaced
alot of scientist believe it |
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Definition
| info gathered from observations |
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| shine a beam of transmission through a thin specimen |
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Definition
| run a pencil like beam of electrons back and forth across the surface of the specimen |
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| study of animal behaviors |
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| any kind of detectable signal that carries info |
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Definition
| single specific reaction to a stimulus |
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| experimented with spontaneous generation, covered jars to see if maggots would appear |
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| boiled gravy to see if that would kill bacteria |
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| (created that tube machine thingy) said as long as micro organisms could not get in it would remain free of living things |
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| 2 cells form when different parents unite |
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| single parent dividies in half and from two organisms |
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