声音简介There are all kinds of volcanoes all over the world, but how are they formed? And how do they erupt? To find out, we’ll travel to the center of the Earth, and we’ll meet a NASA robot that’s going on a very special volcano mission. ...
When you sit down and really give it a good think, though, people do seem to use the words “lava” and “magma” pretty interchangeably. So what’s the difference between lava and magma? How Do Volcanoes Erupt Anyway? You might have thought volcanoes were the coolest thing as a ki...
If the last eruption occurred before historic times but within 10,000 years, the volcano was considered "dormant" because it likely had the potential to erupt again. Volcanoes that had not erupted in more than 10,000 years were considered extinct, because it seemed unlikely they would erupt ...
If the last eruption occurred before historic times but within 10,000 years, the volcano was considered "dormant" because it likely had the potential to erupt again. Volcanoes that had not erupted in more than 10,000 years were considered extinct, because it seemed unlikely they would erupt ...
there are many theories of what can trigger a volcano to erupt. some are as simple as the buoyancy of magma -- it is less dense than the surrounding rock, so it rises until it intersects the surface. likely, this is only the dominant process as volcanoes that produce lava flows like ...
How and Why Volcanoes Erupt by Jacques Kornprobst and Christine Laverne Only $19.99 With Kornprobst's lucid prose and Laverne's 46 vivid watercolors, readers can see and understand the workings of different types of volcanoes. Written for a general audience, this book gives a deeper understandi...
而危地马拉的富埃戈火山有时每小时可喷发 12 次。Most tourism boards offer guidance on how to visit volcanoes safely.大多数火山地区的旅游局都提供如何安全游览火山的指南。So, if you're looking for a volcanic thrill, do your research.所以，如果您想体验 “火山旅游” 的刺激，请事先做好准备。
Related to this Question How do volcanoes affect water? How do volcanoes affect the ocean? How does water vapor affect how volcanoes erupt? How do volcanoes affect the atmosphere? How do volcanoes affect the cryosphere? How does the water cycle affect the Earth?
active- (of e.g. volcanos) erupting or liable to erupt; "active volcanos" 2. volcano- a mountain formed by volcanic material mountain,mount- a land mass that projects well above its surroundings; higher than a hill crater,volcanic crater- a bowl-shaped geological formation at the top of...
Look at our homemade volcano erupt! Add a couple of drops of food coloring to the vinegar. Then pour the colored vinegar into your bottle (using a funnel if necessary) and watch the reaction happen! Why the Volcano Erupts This easy volcano experiment for kids is based on a simple chemical...