How do you think the colored-film card changes the white light into colored light? Describe how you might test your ideas to see if they are correct.

the independent variable, or the one that is intentionally manipulated is the speed.

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.