3. WHAT ARE THE VARIABLES OF THIS EXPERIMENT? Independent Variable
(what you are changing)
Dependent
Variable (what you are
measuring)
Controlled
Variables (those factors
that need to be held the
same in each trial to
ensure a fair test)
I
List down the stens of how

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

What sort of waves exhibit the doppler effect?

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air