1. Volcanoes 101 2. Magma - molten rock under theearthLava - magma that has reachedthe surfaceNon-explosive Eruptions lava flows - rivers of hotlava Lava fountains - sprays…
volcanoes volcanoes Chapter 7 Sections 3 & 4 Volcanic Eruptions As magma heats up it becomes LESS dense and flows upwards. If there is an opening in the crust, it will…
VOLCANOES VOLCANOES YEAR 7 1 3 There are around 600 active volcanoes on land. Many more lie beneath the sea. Volcanoes occur in belts that extend across continents and oceans.…
Volcanoes and plate tectonics Volcanoes Lava Video 1 Volcanoes, magma, and lava Volcanoes are weak spots in the crusts where molten material, or magma, comes to the surface.…