This fact sheet answers the most frequently asked health questions (FAQs) about perchlorates. For more information, call the ATSDR Information Center at 1-800-232-4636. This fact sheet is one in a series of summaries about hazardous substances and their health effects.erchlorates are colorless salts that have no odor. There are five perchlorate salts that are manufactured in large amounts: magnesium perchlorate, potassium perchlorate, ammonium perchlorate, sodium perchlorate, and lithium perchlorate. Perchlorate salts are solids that dissolve easily in water.
Instructions. 1  1. First of all, start with few and easy sign languages. Introducing too many signs at one time will be a useless effort. 2  2. Introduce the signs to your children in such a way as âyou say the word.â It helps in associating the word with the sign language.
All the worldâs languages put together comprise about 800 or so sounds. Each language uses only about 40 language sounds, or âphonemes,â which distinguish one language from another. At birth, the baby brain has an unusual gift: it can tell the difference between all 800 sounds. This means that at this stage infants can learn any language that theyâre exposed to. Gradually babies figure out which sounds they are hearing the most.