Btec Applied Science Unit 3 questions and
answers 2025/2026 latest update
What is a hypothesis? - answerAn Idea that you can test using practical experiments
What are the Key features of a good hypothesis? - answerA good Hypothesis must:
Be able to be tested scientifically
Relate one dependent variable to on independent variable
What is a Null Hypothesis? - answerStates 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? - answerIt 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? - answerIt refers to numerical measurements made, such as the
volumes and times measured.
What is SOP? - answerThe 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? - answerTitration, Handling of chemicals, disposal of waste,
qualitative analytical tests, preparing solutions
What are risk assessments? - answerIt identifies hazards, evaluates the risks associated with those
hazards and it determines ways to eliminate or control those risks.
What is a Hazard? - answerWhen the equipment or substance can cause harm, for example a hot plate
or hydrochloric acid
, What is a risk? - answerThe 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? - answerThe variables you change during an investigation.
What is the Dependent variable? - answerThe variables you are investigating and measure during an
investigation.
What is the control variable? - answerThe variables you keep constant during an investigation.
What should a method be? - answerA 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? - answerThat it will procedure a range of
results, reliable results, precise results, and accurate results.
What are some types of data? - answerThe 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? - answerContinuous 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? - answerThey are used for discrete data but can be used to compare
different sets of data.
What is the Pattern on the graph? - answerThe shape of the graph. It is the line that goes up as time
goes by but eventually levels off
What is the trend on a graph? - answerThe relationship between factors on the graph or in the table.
The full trend is that the volume increases as the time increases but then levels off after a certain
amount of time.
answers 2025/2026 latest update
What is a hypothesis? - answerAn Idea that you can test using practical experiments
What are the Key features of a good hypothesis? - answerA good Hypothesis must:
Be able to be tested scientifically
Relate one dependent variable to on independent variable
What is a Null Hypothesis? - answerStates 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? - answerIt 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? - answerIt refers to numerical measurements made, such as the
volumes and times measured.
What is SOP? - answerThe 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? - answerTitration, Handling of chemicals, disposal of waste,
qualitative analytical tests, preparing solutions
What are risk assessments? - answerIt identifies hazards, evaluates the risks associated with those
hazards and it determines ways to eliminate or control those risks.
What is a Hazard? - answerWhen the equipment or substance can cause harm, for example a hot plate
or hydrochloric acid
, What is a risk? - answerThe 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? - answerThe variables you change during an investigation.
What is the Dependent variable? - answerThe variables you are investigating and measure during an
investigation.
What is the control variable? - answerThe variables you keep constant during an investigation.
What should a method be? - answerA 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? - answerThat it will procedure a range of
results, reliable results, precise results, and accurate results.
What are some types of data? - answerThe 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? - answerContinuous 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? - answerThey are used for discrete data but can be used to compare
different sets of data.
What is the Pattern on the graph? - answerThe shape of the graph. It is the line that goes up as time
goes by but eventually levels off
What is the trend on a graph? - answerThe relationship between factors on the graph or in the table.
The full trend is that the volume increases as the time increases but then levels off after a certain
amount of time.
