Write an article based on this "Consider size and pockets. Choose a fabric. Check the zippers. Consider current fashions."
article: Determine what size objects and how much weight you will carry to school. Also think about what sorts of pockets you will need. College students will have different needs from those of first-graders. Some things to keep in mind include:  Do you need a compartment for your computer? Do you need a place to put your lunch? Do you need places to put pens, keys, or other small objects? Do you want water bottle holders or mobile phone pockets? How many binders, notebooks, and books will you need to carry at once? The fabric a backpack is made of will determine its weight, breathability, and durability.  New synthetic fabrics will last longest, but leather ages with more character. Synthetic fabrics are lighter-weight than leather. If you choose a leather bag it will be much heavier even before you begin to load it.  Synthetic fabrics like polyester and nylon are more water-resistant than natural fibers like cotton.  Natural fibers like hemp are more environmentally sustainable than synthetics. If you care about having an eco-friendly bag choose a natural fiber. Look closely at the closures for the pockets and make sure they are sturdy and easy to close.  Choose double-headed zippers for easiest access. Look for heavy-duty zippers that will hold up over time. Style is an important feature of a school backpack. You will want a bag that looks good and is also similar to backpacks that are currently in style.  Prints are fashionable right now, but consider solid colors too because you will wear the bag every day and it has to match a lot of outfits.  About half of the backpacks sold by one of the biggest companies, Jansport, are black. If you want a sleek, timeless bag that will fit in with the crowd you can't go wrong with a black backpack. Try an eco-friendly bag. Backpacks made from recycled or sustainable materials are very trendy.

Write an article based on this "Melt butter over low heat. Taste test. Pour over the toast."
article: Place the butter in a saucepan and heat until melted. Stir in a pinch of salt and taste the result. Add more spices if desired, or melt in more cheese if the flavor is too strong for you. Serve each person a slice of toast covered in a generous amount of Welsh rarebit. The mixture will be quite liquid, so provide knives and forks.

Write an article based on this "Use water for the most inexpensive ballast option. Fill your tires with diluted antifreeze in cold weather. Try calcium chloride ballast in extreme cold temperatures. Choose polyurethane foam for an effective, yet expensive ballast option."
article:
Water is the most popular liquid ballast because it is cheap and plentiful. If you have a lot of tractor tires to fill or want to save money, water is probably your best option. Avoid using water in weather with temperatures below 32 °F (0 °C), as your liquid ballast may freeze and weigh down the tire. In cold, wintery climates, antifreeze can keep your ballast from freezing. Mix water with antifreeze in a 50/50 ratio to prevent your ballast from weighing down your tractor when temperatures drop.  Choose non-toxic antifreeze in case your ballast leaks and comes in contact with plants or animals. Antifreeze can keep liquid ballast from solidifying in temperatures down to −40 °F (−40 °C). Calcium chloride is the best liquid ballast for climates where temperatures drop as low as −50 °F (−46 °C). Mix calcium chloride flakes with water in a ratio suggested by its packaging for a cheap, freeze-resistant ballast solution. Calcium chloride is, however, more likely to rust the metal parts of tractor tires. Polyurethane foam is a common liquid ballast with a sturdy weight. Because you have to hire a mechanic to fill the tires, however, it is pricier than most ballast options. Do not attempt to fill tires with polyurethane foam yourself, as it will be more likely to leak while your tractor moves.