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Holt Life scince book chapter 12
qustions for Holt Life scince test chapter 12
20
Science
7th Grade
05/18/2011

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Term
Selective breeding
Definition
breeding plants or animals to produce
certain traits
Term
Generation
Definition
all off spring from one set of parents
Term
Brassica Rapa
Definition
scientific name for our Wisconsin fast plants
Term
Germinate
Definition
to sprout
Term
Cross Pollination
Definition
moving pollen from the male part of the plant to the female part of another plant
Term
variable
Definition
anything that could affect the outcome of an experiment.
Term
scientific method
Definition
a step by step process used to investigate a problem or a question (7 steps)
Term
capillary action
Definition
force which causes a liquid to rise against gravity when in a small tube or when in contact with an absorbent material
Term
anti algal agent
Definition
any thing that prevents algae growth(example copper sulfate)
Term
hypothesis
Definition
a proposed solution solution to a problem
or an answer to a question
Term
data
Definition
recorded observations and measurements
Term
Independent Variable
Definition
the one variable in the experiment that is being tested
Term
experimental set up
Definition
that part of the experiment which contains the independent variable.
Term
control set up
Definition
that part of the experiment that dose not contain the independent variable
Term
conclusion
Definition
a judgment based on the analysis of data
Term
cotyledon
Definition
a leaf already present within the seed
Term
true leaves
Definition
leaves developed after germination
Term
flower buds
Definition
premature flowers ( before they bloom )
Term
Stamen
Definition
male reproductive organ of the flower where pollen developed
Term
filament
Definition
the stem portion of the stamen
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