What determines lithospheric thickness?

Lithospheric thickness is like how thick a chocolate bar is, it depends on what’s inside and what's happening around it.

Imagine the Earth as a giant layered cake, and the lithosphere is the crunchy top layer you can bite into. It's made of rocky plates that float on a softer, gooier layer below called the asthenosphere. Now, think about how thick that crunchy part would be if you left it in the fridge for a while, it might get harder and not as squishy.

• Cooler things are thicker, Just like ice cubes are thicker when they’re colder. When parts of the Earth cool down, the lithosphere gets thicker.
• Warmer things are thinner, Think about hot soup, it’s easier to stir and moves around more. Warm areas in the Earth make the lithosphere thinner.

So, the temperature inside the Earth, along with how much rock is there, helps decide just how thick that crunchy layer, the lithosphere, will be. Lithospheric thickness is like how thick a chocolate bar is, it depends on what’s inside and what's happening around it.

Imagine the Earth as a giant layered cake, and the lithosphere is the crunchy top layer you can bite into. It's made of rocky plates that float on a softer, gooier layer below called the asthenosphere. Now, think about how thick that crunchy part would be if you left it in the fridge for a while, it might get harder and not as squishy.