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.
A thermite reaction--sometimes called a Goldschmidt reaction--refers to the very exothermic process occurring between a metal oxide such as Iron (III) oxide, Manganese (IV) oxide, or Copper (II) oxide, and a more reactive pure metal, such as Magnesium or Aluminium.