PLEASE, WHATS THE CONSTANT, CONTROL, INDEPENDENT VAR, AND DEPENDENT VARIABLE? THE GIZMO IS ABOUT WEIGHT AND HOW BEING ON DIFFERENT PLANET CHANGES IT. LOOK FOR YOURSELF AND PLEASE HELP!!! :((

The independent variable would be the location (in this case, what planet we are on). The dependent variable is the weight of each object. The constant variable would be the amount placed onto one side of scale corresponding to another object (for example, the dog having 5 kilograms on one side NO MATTER WHAT). The control group would be the paired weight towards an object.