• Question: can any rocks float

    Asked by Twilight Fang to Alex, Amanda, Marco, Olivia on 15 Mar 2017.
    • Photo: Alex Evans

      Alex Evans answered on 15 Mar 2017:

      Pumice is a kind of volcanic rock that is formed under high pressure in volcanoes and fired out! When this happens, it cools rapidly, which causes lots of air bubbles to appear throughout the rock. This makes it quite porous and light, and it can actually float on water!

Comments