Understanding Fair Tests in Experiments

What is the main requirement for an experiment to be considered a fair test?

• Two variables should change.

• No variables should change.

• Only one variable should change.

• All variables must change.

In the discussed experiment, what was identified as the change variable?

• Humidity level

• Exposed surface area of the t-shirt

• Presence of wind

• Temperature of the air

Why is it important to keep the experiment in the same location?

• To vary the time taken for drying

• To alter the exposed surface area

• To ensure the temperature and wind conditions remain constant

• To change the humidity levels

Which factors are kept constant by using the same location for the experiment?

• Exposed surface area and temperature

• Time and humidity

• Temperature and presence of wind

• Humidity and exposed surface area

What is the result being measured in the experiment?

• The weight of the t-shirt

• The time taken for the t-shirts to dry

• The size of the t-shirt

• The color of the t-shirt