What is the independent variable in an experiment? A)
The variable that remains the same throughout the
experiment.
B)
The variable being tested in the experiment.
C)
The variable being measured in an experiment.

2. what type of variable should there only be one of in an experiment?
a. dependent
b. independent
c. control
d. responding

An example of International system of measurement unit is:
a. pound
b. mile
c. liter
d. ounce

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

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.