In the Thermite reaction, aluminium powder is used to displace iron from iron oxide. This reaction is used to weld together railway lines.try clicking on the title to view the video

[slideshare id=217604&doc=location-of-an-organisation-1199348661176091-2&w=425]

[slideshare id=217603&doc=science-at-work-1199348660914991-2&w=425]