The Scientific Method: Tutorial 9 of 39
E Save & Exit
Lesson Activity
Print
Analyzing an Experiment
This activity will help you meet these educational goals:
. You will develop a detailed explanation of a process using well-chosen examples.
. You will state what happens to a dependent variable when an independent variable is changed.
Directions
Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the
end of the activity, write a brief evaluation of your work.
Activity
In this activity, you'll watch a video of an experiment that relates to climate change. The experiment compares the effects
of heat on carbon dioxide and air. Watch the video e now. Then answer the series of questions below.
Part A
In the video, the experimenter used a model to represent a phenomenon observed in the natural world. What did the
light and each of the flasks represent in this model?

Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease