If you received an actual survey form in the mail, here are a few common items to verify the paper form is a legitimate Census Bureau survey. 1  An official survey code: all surveys have a code, such as OMB No. 0607-0763, in the upper right hand corner.
Materials Used. Munch painted some his works on canvas. In fact, when he lacked painting surfaces, Munch used his bedsheets as canvases for his paintings. Munch also painted on cardboard and wooden boards. The Norwegian artist used oil paints, but also other materials such as tempera, gouaches or waxed crayons.The painted version of The Scream is created in tempera and pastel on cardboard.unch also painted on cardboard and wooden boards. The Norwegian artist used oil paints, but also other materials such as tempera, gouaches or waxed crayons. The painted version of The Scream is created in tempera and pastel on cardboard.
Swedish chemist Carl Gustav Mosander discovered lanthanum during experiments on an impure sample of cerium nitrate in 1839. Like most of the rare-earth elements, lanthanum is used in small amounts to alter key properties of other materials.Lanthanum oxide is added to glass to impart increased resistance to alkalis, strength, a high refractive index and low dispersion, and can be used to make infrared-absorbing glass.wedish chemist Carl Gustav Mosander discovered lanthanum during experiments on an impure sample of cerium nitrate in 1839. Like most of the rare-earth elements, lanthanum is used in small amounts to alter key properties of other materials.