1 The dependent variable would be the amount of liquid absorbed by a paper towel. 2  In an experiment to determine how far people can see into the infrared part of the spectrum, the wavelength of light is the independent variable and whether the light is observed (the response) is the dependent variable.
2. Cook the ribs slowly for 1-1/2 to 2 hours, over medium heat (325Â° to 350Â°) and over a drip pan half filled with water. Long, slow cooking makes for moist and tender ribs with a crisp crust. If in the first 30 minutes the ribs are browning too quickly, shut the grill vents. 3. Determining when pork ribs are done is a little tricky, but after 1-1/2 to 2 hours, you can be virtually certain that the ribs are fully cooked.
1 Take ribs from the oven and place them on a grill heated to medium and lightly oiled, throwing away cooking liquid. 2  Grill for 15 minutes and turn the ribs once. 3  Apply barbeque sauce generously and grill for eight minutes. Place ribs on a baking sheet, bake for 2 Â½ hours or until meat begins to shrink away from the bone. 2  Remove ribs from oven and heat grill. 3  Cut ribs into portions of two or three ribs each and after arranging them on the grill with bony side facing up, brush on barbecue sauce.