Red displays come from Lithium, Rubidium and Strontium. These metals give different intensities in color and some even play other roles. Lithium and Rubidium are metals in group one of the periodic table. Lithium gives a medium red color and is most useful, for this purpose in its carbonate form. Rubidium on the other hand gives a deep red/ violet-red flame and is also used to oxidize the mixtures in these explosives; without oxidation, they will not burn properly. Strontium burns with an intense red but it also has the job of stabilizing the elements used to make the fireworks.
How do you ensure that the educational toy you buy will be right for your child? As with everything there are no guarantees with children. There are a couple of things to consider when selecting childrens educational toys that can improve the chances that your choice will be well received. First, evaluate the developmental stage that your child is at. Select educational toys that target skills and abilities for that stage. An educational toy that is too advanced may cause frustration, and one that is too simple will not be challenging enough to warrant attention. Below is a general guideline for what types of childrens educational toys are better suited for developmental stages from newborn through 3 years old. This is only meant to be a guide to start you thinking in the right direction. Use these guidelines and your knowledge of your childs interests to you help make your educational toy purchases.
1 to 2 years: With each step your baby becomes more independent and confident. Little ones at this age spend every waking hour exploring and experimenting. For those still a bit unsteady walking, educational toys that promote mobility such as a walker or push car are great choices. Pushcarts and wagons are a great way for children to tote things around- another favorite activity at this age. Educational toys including soft plush toys and dolls remain favorites at this age. Children often become very attached to one or two and use them in creative play. Toddlers can find many ways to make loud sounds. Musical instruments like drums, maracas, and tambourines are educational toys that will help them learn to appreciate music while they make noise. Inset puzzles require toddlers to lift out pieces and find the right places to put them back. These first puzzles improve problem skills and fine tune motor skills. Puzzles are educational toys that your children will play with over and over again.
Teaching profession is devalued in the country because the teachers cant compete in our society, have no muscle power, are educated and hence behave differently. Neither do they have guts of creamy bureaucrats nor institutional support of any kind. A teacher can entertain you with a pale smile on hearing that this is the profession of nation builders, the cream of society and a noble profession. The next moment teacher will be branded as cancers in societal marrow, getting salary for no work, craving for power, equality in salary and status with the Class A government servants. The teacher was the consultant and conscience keeper of society till mid-century. One could identify him by his tattered clothes, emaciated pale face, soft voice and meek behavior. He was the guru. That guru, comparatively having a better outfit now, has metamorphosed to a present teacher.
Fireworks light up the sky during celebrations; they give a wonderful show of color and shapes that fascinate the eyes and minds of many. The beauty of the display often leads many to wonder where the colors come from. The short answer is that they are the result of the burning of metals placed in these explosives. These metals are elements of the periodic table that burn at different temperatures and give off colors at their melting points.