What is a volcano for Grade 5?
A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. Gases and rock shoot up through the opening and spill over or fill the air with lava fragments.
What kids should know about volcanoes?
A volcano is a mountain or hill with an opening. When a volcano erupts, magma is pushed up through the opening with great force. When magma reaches the Earth’s surface, it is called lava. Lava can be as hot as 2,200°F (1,204°C).
What are 10 facts about volcanoes?
Top 10 Facts About Volcanoes
- Volcanoes are openings of the Earth’s surface.
- The word volcano comes from the word ‘vulcan’.
- Volcanoes can be active, dormant or extinct.
- The liquid inside the volcano is called magma.
- Lava is the liquid that is expelled from the volcano.
- Lava is very, very hot!
How do volcanoes erupt for kids facts?
Volcanoes form when magma travels from the Earth’s upper mantle to its surface. Pressure builds up inside the volcano and pushes magma through cracks in it. When the magma reaches the surface it erupts. Lava, steam, gaseous sulfur compounds, ash and broken rocks can come out of a volcano when it erupts.
How long does a volcano last?
Volcanoes usually have a life of many thousands of years. Once a volcano has begun to erupt, it usually takes about ten years before that particular eruption comes to an end. Sometimes the eruption lasts for hundreds of years.
What are facts about shield volcano?
Shield Volcano Facts. Some located in Hawaii reaching an altitude of 8,000 meters above the sea floor, which is 12,000 meters above their base. In fact, some of the largest volcanoes you will find on the planet are actually shield volcanoes, with Mauna Loa, located on Big Island in Hawaii, being the largest of this type.
What are some facts about shield volcanoes?
Shield volcanoes can sometimes create lava tubes. This is usually a result of repeated eruptions over many years. The lava will follow a path down a hill, and as the exterior of the lava cools it can serve as insulation for the lava underneath. This lava underneath the cool outer layer is still hot and still flowing.
How do volcanoes erupt?
Formation of Volcanoes. There are two types of volcanoes with regards to their process of formation; those that form in subduction zones,and others that arise in areas of increased
What is volcano for kids?
Volcano Facts for Kids. Mount St. Helen is this type of volcano. Shield Volcanoes – Shield volcanoes are volcanoes shaped like a bowl or shield in the middle with long gentle slopes made by basaltic lava flows. Lava Volcanoes – Lava domes are formed when erupting lava is too thick to flow and makes a steep-sided mound as the lava piles up near the volcanic vent.