MVA Year 7. Scientific Method Diagnostic Tool

In a results table, what factor is always recorded in the first column?

• The independent variable (the one factor that is changed)
• The dependent variable (the result of the experiement)
• The controlled variable (all the factors that are kept the same)
• Don't know

Give one way in which the experiment was made a fair test.

• The volume of water was the same in each experiment.
• The experiment was repeated three times.
• The results are recorded with decimal points.
• An average has been calculated.
• Don't know

Give one other way in which the experiment was made a fair test.

• The experiment was done safely.
• Bothe salt and sugar are tested.
• The results are recorded in a table.
• The same mass of sugar or salt was used
• Don't know

How was the reliability of the experiment improved?

• It was repeated three times (3 trials)
• A method was followed accurately.
• Two temperatures were used.
• Don't know

In hot water, which substance dissolved quickest?

• Salt
• Sugar

In cold water, which substance dissolved slowest?

• Salt
• Sugar

The results table contains a big error. What error was made?

• The amount of sugar (5g) was too much
• A decimal point has accidentally been placed between the two digits
• The time should have been recorded in minutes.
• Don't know

What factor should always go along the x axis?

• Independent variable
• Dependent variable
• Controlled variable
• Don't know

What factor should always go along the y axis?

• Independent variable
• Dependent variable
• Controlled variable
• Don't know