Identify the independent variable given the context below.

Context: An experiment was done to see if the temperature of the air in the oven is related to the time it takes to bake a cake.

Identify the dependent variable given the context below.

Context: An experiment was done to see if the temperature of the air in the oven is related to the time it takes to bake a cake.

Identify a control variable given the context below.

Context: An experiment was done to see if the temperature of the air in the oven is related to the time it takes to bake a cake.

Identify a scientific hypothesis that can be tested by the situation below.

Situation: An experiment was done to see if the temperature of the air in the oven is related to the time it takes to bake a cake.

Experiment: A company manager tests if changing the lighting conditions in a packing room will

change productivity (number of products packed). Using the same workers, the room is lit up with

400 watts of power one day and the next day the room is kept at the usual lighting of 600 watts.

Choose the choice below that represents the independent variable in this experiment.

Experiment: A company manager tests if changing the lighting conditions in a packing room will

change productivity (number of products packed). Using the same workers, the room is lit up with

400 watts of power one day and the next day the room is kept at the usual lighting of 600 watts.

Choose the choice below that represents the dependent variable in this experiment.

Experiment: A company manager tests if changing the lighting conditions in a packing room will

change productivity (number of products packed). Using the same workers, the room is lit up with

400 watts of power one day and the next day the room is kept at the usual lighting of 600 watts.

Choose the choice below that represents a control variable in this experiment.