Best answer gets ! amy demonstrated the formation of a type of rock. she kept a bowl of hot water in the freezer. the water solidified to form ice. the formation of which type of rock did amy demonstrate? eroded rock igneous rock metamorphic rock sedimentary rock

. Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust. Typically, the melting is caused by one or more of three processes: an increase in temperature, a decrease in pressure, or a change in composition.  In this case, the "rock" is ice. The hot water has cooled through a change of temperature to create a solid structure (ice).