BTEC Applied Science Unit 3 Study Guide Test.
What is a hypothesis? - CORRECT ANSWER An Idea that you can test using practical experiments
What are the Key features of a good hypothesis? - CORRECT ANSWER A good Hypothesis must:
Be able to be tested scientifically
Relate one dependent variab...
BTEC Applied Science Unit 3 Study
Guide Test.
What is a hypothesis? - CORRECT ANSWER An Idea that you can test using practical experiments
What are the Key features of a good hypothesis? - CORRECT ANSWER A good Hypothesis must:
Be able to be tested scientifically
Relate one dependent variable to on independent variable
What is a Null Hypothesis? - CORRECT ANSWER States that there is no relationship or causality, for
example, no relation between the temperature and the rate of reaction.
What does qualitative data refer to? - CORRECT ANSWER It refers to the appearance or value of
something, such as the colour observed or whether the bubbles are produced.
What does Quantitative data refer to? - CORRECT ANSWER It refers to numerical measurements made,
such as the volumes and times measured.
What is SOP? - CORRECT ANSWER The Standard Operating Procedure. This is an established procedure
or method used to carry out a routine activity. It ensures consistent results every time.
What are some examples of SOPs? - CORRECT ANSWER Titration, Handling of chemicals, disposal of
waste, qualitative analytical tests, preparing solutions
What are risk assessments? - CORRECT ANSWER It identifies hazards, evaluates the risks associated with
those hazards and it determines ways to eliminate or control those risks.
What is a Hazard? - CORRECT ANSWER When the equipment or substance can cause harm, for example
a hot plate or hydrochloric acid
, What is a risk? - CORRECT ANSWER The harm that the hazard could cause and the chances of it
happening, for example the risk of using a hot plate is getting burnt.
What is the independent variable? - CORRECT ANSWER The variables you change during an
investigation.
What is the Dependent variable? - CORRECT ANSWER The variables you are investigating and measure
during an investigation.
What is the control variable? - CORRECT ANSWER The variables you keep constant during an
investigation.
What should a method be? - CORRECT ANSWER A step-by-step set of instructions, Be logically ordered,
allows you to take sensible measurements, and allows you to test your hypothesis.
When planning your method what do you need to make sure? - CORRECT ANSWER That it will
procedure a range of results, reliable results, precise results, and accurate results.
What are some types of data? - CORRECT ANSWER The data can be continuous such as the age of plant
ir number of plants. Some data can be a mixture of numbers and names such as the number of different
types of plants found in a garden.
What data is normally displayed on a bar chart? - CORRECT ANSWER Continuous data. You need to make
sure its a smooth curve of best fit, and that the curve goes through or near most of the points.
What are bar charts used for? - CORRECT ANSWER They are used for discrete data but can be used to
compare different sets of data.
What is the Pattern on the graph? - CORRECT ANSWER The shape of the graph. It is the line that goes up
as time goes by but eventually levels off
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