The molten rock just under Earth's solid crust sometimes erupts suddenly and violently, causing streams of red-hot lava and scorching high-speed avalanches called pyroclastic flows.
This book is part of Reading Champion, a series carefully linked to book bands to encourage independent reading skills, developed with UCL Institute of Education (IOE)Seasons is a non-fiction text exploring how the weather changes in different seasons.
Explorer Ernest Shackleton and his crew hoped to be first to cross Antarctica from sea to sea, until their ship became trapped in the ice and began to sink.