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WS1 - develop inquiry questions and hypotheses

WS1 - modify hypotheses

WS2 - justify and evaluate the use of controls to get valid and reliable data

WS 4 -evaluate and improve quality of data

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syringe with graduations
range of weights

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the degree of accuracy is a measure of how close and correct a stated value. is to the actual, real value being described. • accuracy may be affected by rounding, the use of significant figures. or designated units or ranges in measurement.

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Approximate measurements - Intermediate & Higher tier - WJEC - Revision 5 - GCSE Maths - BBC Bitesize

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Learn how to approximate using a range of rounding and estimation techniques with GCSE Bitesize Maths.

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Systematic error
accuracy
fair test
limitations
gather data
hypothesis
trial and modify

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Let's do our own experiment for Boyle's Law

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Let's do our own experiment for Boyle's Law

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A law stating that the pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature.

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When doing an experiment consider the technology used in terms of WS.

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Systematic errors in experimental observations usually come from the measuring instruments. They may occur because:

there is something wrong with the instrument or its data handling system, or

because the instrument is wrongly used by the experimenter.

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Random errors in experimental measurements are caused by unknown and unpredictable changes in the experiment. These changes may occur in the measuring instruments or in the environmental conditions.

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Technology development leads to scientific knowledge leads to greater technology

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Design an investigation
controlled variables
control
ID and DV
relevant data
limitations
random error
systematic error
degree of accuracy
digital vs analogue
Chemical safety data WHS

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genetic engineering
reproductive technologies cloning

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How did this science lead to developments in biotechnology

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e.g. Double helix NOT triple helix

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How did this technology help Rosalind Franklin in her research about DNA

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WS 1,2 & 4

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X Ray diffraction aka  X-Ray crystallography

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X Ray diffraction aka  X-Ray crystallography

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discovery of DNA

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How does technology enhance and/or limit scientific technology?

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How have developments in technology led to advances in scientific theories and laws that, in turn, drive the need for further developments in technology?