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.
Grilling spare ribs can take up to six hours, says AmazingRibs.com, while baby back ribs may take as long as four hours to grill. To cut down on the grilling time, you can steam ribs up to two days in advance.Pre-steamed ribs can be grilled in approximately 15 minutes, according to Good Housekeeping. Pork and beef ribs are high in cholesterol and saturated fat.rilling spare ribs can take up to six hours, says AmazingRibs.com, while baby back ribs may take as long as four hours to grill. To cut down on the grilling time, you can steam ribs up to two days in advance.