Article: It's easy to see the principles of evaporation in action by performing this simple experiment. To start, all you'll need is a little ordinary table salt, some tap water, a saucepan, a little black construction paper, and a stove. Add a few cups of water to the pan and place it on a hot burner. Wait for the water to heat — it doesn't necessarily need to boil, but the hotter it gets, the more quickly it will dissolve the salt. The reason hot water is best for dissolving salt (and other chemicals) has to do with the motion of the molecules making up the water. When the water gets hot, the molecular motion increases, running into more salt molecules and making the bonds easier to pull apart. Continue adding small spoonfuls of salt and stirring to dissolve them. Eventually, you'll reach a point at which the salt won't dissolve anymore, no matter how hot the water is. This is called the water's saturation point. Turn the stove off and let the water cool slightly. When water reaches its saturation point, it no longer has any ability to dissolve salt at a molecular level — so much salt has dissolved that there is no longer any chemical potential for the water to pull apart new salt crystals. Using a spoon or ladle, pour a little of your saltwater over a dark-colored piece of construction paper. Place this paper on a dish to avoid having it soak through to the countertop or work surface below. Now, all you need to do is wait for the water to evaporate. This process will be slightly faster if you leave the paper somewhere the sun's light can hit it. Don't waste your leftover salt water — there are tons of things you can use it for. For instance, you can use it to poach an egg, boil potatoes, preserve spinach, and even help you peel nuts! As the water evaporates, it should leave behind miniature salt crystals. These should look like small, shiny, white or clear flakes on the surface of the paper. Congratulations! You've just separated salt from water. Feel free to scrape a little bit of salt from your paper to season your food — it should be perfectly safe to eat. Be careful not to get any paper shavings in your food, though!
Question: What is a summary of what this article is about?
Heat water and add salt to make saltwater. Add salt until it no longer dissolves. Spoon the water onto dark construction paper. Wait for salt to form.
Article: This is to remove any dead bugs lying around and just as another precautionary measure in case there were still some eggs or baby blood-suckers that made it through the initial phase of cleaning. They will get vacuumed up very easily. Wash everything where a bed bug can potentially hide. You can't wash these in the laundry machine, so wrap them up with a protector that has a bed bug-proof zipper that will seal any existing bed bugs inside and prevent any new ones from crawling in.
Question: What is a summary of what this article is about?
Clean everything thoroughly, again! Wash all of your bed sheets, comforters, duvet/pillow covers. Buy bed bug mattress and pillow protectors.
Article: Satin stitching by hand takes precision. Practice on spare fabric first so you get a sense for how tight to stitch, and how to keep the stitches as close as possible. Start with a simple square or circle before trying intricate satin stitch patterns. Once you're confident with your scrap cloth, move on to a real project. Here are a few ideas:  Outline the edge of a garment. Monogram a project. Sew buttonholes with an extra-narrow satin stitch. When you feel ready, try a whole art piece with satin stitches. Remember to stick to narrow stitches only.
Question: What is a summary of what this article is about?
Practice on fabric scraps. Incorporate satin stitch in your design.