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 When cooking ribs in the oven, place ribs on rack of a broiler pan. 2  Brush with KRAFT or BULLâS-EYE Barbecue Sauce, then bake at 350Â°F for 1 hour 15 min. or until ribs are done, turning and brushing occasionally with additional barbecue sauce. 3  Ribs are not just for grilling.