#4 b1 topic 1 - continuous and discontinuous variation
DESCRIPTION
B1 Topic 1 - continuous and discontinuous variation: Edexcell GCSE Science -> Higher -> Core Science -> B1 -> Topic 1 -> continuous and discontinuous variation 4th in the B1 Topic 1 series - Contains everything you need to know from the specification* - Specially designed for triple and dual science GCSE - A good teaching tool - A good revision tool - Compliments the CGP revision books *From Edexcell GCSE Science from 2011 specification, suitable for 2014 & 2015 exams Contains detailed notes and questions that may come up in the exams. Please comment with your views or any questions that you haveTRANSCRIPT
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B1 TOPIC 1 - VARIATION
Continuous And Discontinuous Variation
CVHS GCSE POWERPOINT SHARE
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Continuous VariationContinuous variation is when individuals within a population vary within a range.
There are no distinct categories.
Examples• Animal mass• Width of bacteria• Amount of plant leaves
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Continuous Variation Graphs
MeanNormal distribution curve
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Continuous Variation Graphs
MeanNormal distribution curve
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Discontinuous VariationDiscontinuous variation is when individuals characteristics within a population fit into two or more distinct categories.
There are no intermediate categories.
Examples• Blood group in humans• Bacteria’s anti-biotic resistance• how vertebrates respire• Colour of a courgette
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Discontinuous Variation Graphs
Mode
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Discontinuous Variation Graphs
Mode
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PracticalsLook at the image and think of a practical, and what it
shows...
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PracticalsRecord the eye colour
There will be distinct categories such as blue,
green etc.
This shows discontinuous variationYou would plot the
information, and make a bar graph, such as the on to the
right.
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PracticalsLook at the image and think of a practical, and what it
shows...
![Page 11: #4 B1 topic 1 - continuous and discontinuous variation](https://reader034.vdocuments.net/reader034/viewer/2022051413/5537fed64a7959f66c8b463d/html5/thumbnails/11.jpg)
PracticalsRecord the hand span
There will be lots of different results, nearly all
different
This shows continuous variationYou would plot the
information, and make a graph with a normal
distribution curve, such as the on to the right.
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QuestionsCompare continuous and discontinuous variation (4)
Give two examples of discontinuous variation (2)
Design a practical for a classroom to show continuous variation (3)