How Does Magma Viscosity, Gas Content & Milkshakes Work?

Magma is like a super hot, thick milkshake that can cause big eruptions if it gets too full of bubbles and gas.

Imagine you're making a milkshake with ice cream, chocolate syrup, and soda, the more soda you add, the more bubbles form. If the shake is really thick (like when there's not much soda), it moves slowly, like when you sip through a straw. But if you add lots of soda, it becomes fizzy and bubbly, making the milkshake shake around and even spill over.

Magma viscosity is how thick or runny the magma is, think of it like how thick your milkshake is. If it's very viscous, it’s like a really thick shake that moves slowly. But if there's more gas inside, it can make the magma behave like a fizzy drink, causing eruptions.

Gas content is like adding more soda to your milkshake, the more gas, the more bubbles and fizz, which makes the eruption bigger and noisier, just like how a shaken-up milkshake spills over when you open the lid.

Take the quiz →

Examples

  1. A thick milkshake is like sticky magma that doesn't erupt easily.
  2. Gas bubbles in a shaken milkshake are like gas in magma before an eruption.
  3. Adding more ice cream to the milkshake makes it thicker, just like adding more silica to magma.

Ask a question

See also

Discussion

Recent activity