Auditory processing disorder (also known as central auditory processing disorder or CAPD) is a condition that makes it hard for kids to recognize subtle differences between sounds in words. It affects their ability to process what other people are saying.
Gallium is a solid metal at room temperature, but it melts in your hands. 00:09. When gallium is in its liquid state, if feels like cold melted solder in your hands. 00:33. Melting gallium onto aluminum makes the aluminum brittle enough to break with your fingers.
Zinc is an elemental metal. It is listed on the Periodic Table as Zn, with an atomic number of 30 and an atomic weight of 65.37, and it melts at 788Â°F (420Â°C). Zinc is usually a gray metallic color, but it can be polished to a shiny silver luster.