Podcast
Questions and Answers
In a fair test, all variables except the one being investigated should be changed.
In a fair test, all variables except the one being investigated should be changed.
False (B)
The dependent variable is the factor being changed in an experiment.
The dependent variable is the factor being changed in an experiment.
False (B)
Laboratory safety rules include eating and drinking in the laboratory.
Laboratory safety rules include eating and drinking in the laboratory.
False (B)
A fair test should include multiple independent variables.
A fair test should include multiple independent variables.
Safety goggles are only necessary when mixing substances.
Safety goggles are only necessary when mixing substances.
Reading safety precautions before doing an experiment is not necessary.
Reading safety precautions before doing an experiment is not necessary.
A fair test is an experiment that tests multiple hypotheses at once.
A fair test is an experiment that tests multiple hypotheses at once.
Scientists use the science process skill of inferring to draw conclusions from experimental results.
Scientists use the science process skill of inferring to draw conclusions from experimental results.
In an experiment, the variable being measured or observed is the independent variable.
In an experiment, the variable being measured or observed is the independent variable.
A hypothesis can be proven true through experimentation.
A hypothesis can be proven true through experimentation.
Control variables are variables that change in response to the independent variable.
Control variables are variables that change in response to the independent variable.
Pattern seeking is a type of scientific investigation that involves designing experiments to test a hypothesis.
Pattern seeking is a type of scientific investigation that involves designing experiments to test a hypothesis.
When measuring the mass of a substance in a container, we should not use the 're-zero' function of an electronic balance.
When measuring the mass of a substance in a container, we should not use the 're-zero' function of an electronic balance.
The thermometer should be held at an angle when reading the temperature.
The thermometer should be held at an angle when reading the temperature.
The precision of an electronic balance can be 10g.
The precision of an electronic balance can be 10g.
Repeating a measurement several times and calculating an average value can reduce errors.
Repeating a measurement several times and calculating an average value can reduce errors.
A Bunsen burner can never strike back if the air hole is fully open.
A Bunsen burner can never strike back if the air hole is fully open.
A temperature sensor connected to a data-logger is used for rough measurements.
A temperature sensor connected to a data-logger is used for rough measurements.
