Making liquid nitrogen is hard – in fact up until 150 years ago scientists doubted whether it was even possible to liquefy nitrogen. In 1823, At the royal institution in London, Michael Faraday first produced liquid chlorine, kind of accidentally by putting it under high pressure. He similarly liquefied ammonia. Continue reading
Is your passport up to date? Travel the world as a Nitrogen compound going through the Nitrogen Cycle Game.
Teaching cycles of matter in grade 9 ecology can be boring and hard to visualize for students. This activity get students up and moving by pretending to be various nitrogen compounds moving through the nitrogen cycle.