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| an if/then statement that incorperates your independent and dependent variable, and tells what you think is going to happen. |
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| the variable in your experiment that you initially change |
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| variable(s) that remain unchanged through every experimental trial |
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| the variable(s) that remain unchanged through every experimental trial |
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| evidence; information gathered from observations |
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| scientific signifant figures |
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| relates to the accuracy of the instruments used during the experiment; the more accurate they are the more significant figures it has. only allows one uncertain number |
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| when you are testing to see if your hypothosis is true or not. it is a visual expression of your hypothesis |
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| using mathematics with data to find ______ |
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| any display of info with rows and/or columns. |
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a graph of parallel, rectangles with lengths scaled to a set of data.
usually D.V. is #
I.V. is a quality |
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| graph made by plotting ordered pairs in a coordinate plane to show the correlatin between 2 sets (I.V. and D.V.) of data |
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| repeated measures of the same thing over a period of time. connecting dots using lines. |
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| a graph that looks like a bar graph but the bars touch. there are no gaps in the data and the data is continuous |
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| the sum of the information you got from an expirament. |
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| if the expirament results stay the same after all your expiramental trials |
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| extensions of an experiment |
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| taking what you know on an experiment an bringing it a step further, asking yourself, "what else can we learn from this experiment?" |
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| statistic that allows us to compare 2 groups. a probability statement that had happened by accident nstead of what was done with the research. 5% or less=good! |
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| publication of the experimental results |
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| by a scientist publishing their findings they can get reveiws from their peers. by publishing reviewed articles in scientific journals allows researchers to share ideas and to test and evaluate eachother's work. |
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| interpretation based on your data that applies to your expirament sample compared to the whole population |
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| having data or evidence to come to a logical, solid conclusion. you are certain of your conclusion. |
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| having some evidence to say that somehting is LIKELY to occur. (less certain than deductive reasoning) |
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| the normal group, nothing's added to it. how the varible would be regularly. |
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| well-tested explanation that unifies a broad range of obervations and hypotheses, and enables scientists to make accurate predictions about new situations |
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| partiular preference or point of view that is personal, rather than scientific. |
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| 1 kilogram = _____ pounds |
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| 453.6 grams = _____ pound |
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| 1 cubic meter = ____ cubic yards |
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| 1 dekaliter = ____ bushels |
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| 1 inch = ____ centimeters |
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| how do you convert F to C? |
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| how do you convert C to F? |
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| DR. Hypo Discovered A Chemical Reaction Eating Pancakes |
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| what is the acronym for the steps of a scientific experiment |
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| what does DR. mean in the acronym in the steps of a scienfic expirament |
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| what does Hypo mean in the acronym in the steps of a scienfic expirament |
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| Design and Do the Research |
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| what does Discovered mean in the acronym in the steps of a scienfic expirament |
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| what does A mean in the acronym in the steps of a scienfic expirament |
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| what does Chemical mean in the acronym in the steps of a scienfic expirament |
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| what does Reaction mean in the acronym in the steps of a scienfic expirament |
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| what does Eating mean in the acronym in the steps of a scienfic expirament |
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| what does Pancakes mean in the acronym in the steps of a scienfic expirament |
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Histogram
bar graph with no gaps |
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no gaps in the data
continuous data |
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Line Graph
starts like scatter point but then you connect dots w/ line |
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| repeated measures of the same thing over a period of time |
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Scatter-plot graph
dots graphed all over |
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| usually both I.V & D.V. are numbers |
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Bar Graph
bars don't touch |
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| uaually D.V is a number and I.V. is a quality. |
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the smallest and most abundant of microorganisms, 1-5 micrometers
unicellular organisms that lack a nucleus |
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| Prokaryotes are classified as _________ or _________- the two of the three domains of life |
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| look very similar to bacteria. both are equallly small, lack nuclei, and have cell walls, but lack peptidoglycan. live in extremely harsh environments |
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| live almost everyone, call walls contain peptidoglycan. |
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| vary in in their size and shape, in the way they move, and in the way they obtain and release energy |
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| spiral and corkscrew-shaped prokaryotes |
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| when a prokaryote has grown so that it has nearly doubled in size, it replicates its DNA and divides in half, producing two identical cells |
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| when growth conditions become unfavorable, many prokaryotic cells from an _____________ - a thick internal wall that encloses the DNA and a portion of the cytoplasm. |
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| random changes in DNA that occur in all organisms |
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| a hollow bridge forms between two bacterial cells and genetic material, usually in the form of plasmid, moves from one cell to the other. |
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| decomposers, producers, and nitrogen fixers |
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| prokarotes are important in the world. what are the three things that make them essential |
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digest petroleum
remove human-made waste products
poisons from water. |
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| some bacteria can digest __________; _____________; __________________ |
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take in organic molecules frm environment or other organisms to use as obth energy and carbon supply;
wide rance of environments |
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like basic heterotrophs, but also use light energy
where light is plentiful |
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use light energy to convert CO2 into carbon compounds;
where light is plentiful |
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use energy released by chemical reactions involving ammonia, hydrogen sulfide, etc.;
in chemically harsh and/or dark environments: deep in the ocean, in thick mud, in digestive tracts of animals, in boiling hot springs |
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cellular respiration; must have ready supply of O2 to release fuel energy;
oxygen-rich environments, such as near water suface or in animal lungs |
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fermentation, die in presence of oxygen;
environments lacking O2, such as deep sol, animal intestines, or airtight containers |
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can use either cellular respiration or fermentation as necessary;
oxygen-rich or oxygen-poor environments |
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