Why do volcanoes erupt? 火山为什么会爆发？

Together, we journey beneath the Earth's crust to discover the scorching layer where rock melts into magma, how pressure builds until it finally breaks through, and the surprising truth that some of the most active volcanoes on Earth are hiding deep underwater.

我们一起踏上地壳之下的旅程，去发现那灼热的地层——岩石在那里熔化为岩浆；压力如何不断积聚，直至最终冲破而出；以及一个令人惊讶的事实：地球上一些最活跃的火山正深藏于水下.

Perfect for little listeners aged 5–8.