Question

Kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. She placed them on a window sill in the sun for an hour and then measured the warmth of the air in each box. In this experiment, the warmth of the air is a(n)
Independent variable
Dependent variable
Constant
Control

Answer 1

Answer: The correct answer is dependent variable.

Explanation:

Independent variable is defined as the variable which remain as such and has no effect on the change of another variable. For Example: Time

Dependent variable is defined as the variable whose value changes with respect to any other variable.

Constant variable is defined as the variable whose value cannot be change if any value is assigned to it.

According to the question:

Three boxes of different materials having same size is kept in the Sunlight to check the warmth of air inside the box.

Thus, sunlight is independent variable and warmth of air inside the box is the dependent one because if the sunlight falling on the boxes increases, the temperature of the air also increases and vice-versa.

Hence, the correct answer is dependent variable.

Answer 2

Answer:

Dependent variable.

Explanation:

Based on the description, the experiment is designed to confirm or reject a hypothesis about a heat absorption patterns by  hollow objects with different transparency. Temperature appears to be the main target variable of interest - this is the dependent variable. Material that each box is made of (specifically, its transparency) is in this case the independent variable, which is determined by the experimenter.