Question

Kate gathered 3 boxes of the same size of different materials: glass, clear plastic, and

aluminum painted black. She placed them on a window sill in the sun for 1 hour and
then measured the warmth of the air in each box.
In this experiment, what is the time of 1 hour

controlled variable
Independent variable
dependent variable

Answer 1

The answer is D) Constant! :)

Para estudiantes de Español:

La respuesta es D) Constante! :)

Step-by-step explanation:

I know this because I took the test. D is correct!

Lo se porque hice la prueba. D es correcto!

Answer 2

A. only volume (cm³) is the independent variable

B. both volume (cm³) and mass (grams) are independent variable

C. not enough information

D. the slope of the trend line

E. only mass (grams) is the independent variable