kids learning tube - why is mercury shrinking? كلمات أغنية

[chorus]

within the first planet, there’s a cooling emergency!

this planet’s shrinking much faster, yes i am mercury

[verse]

in 2004, nasa launched the messenger probe

it travelled 1,260 days to reach mercury from your globe

messenger took about 100,000 images by 2012

mapping 99% on my surface so you can see it well

these images were sent to scientists back to earth to inspect

to confirm what mariner 10 probe did suspect

they saw wrinkles and riffs on mercury’s surface

it’s like a raisin orbiting the sun, but why is this?

scientists confirm mercury is shrinking since its distant past
over 4,000,000,000 years, it’s 8 miles smaller in diameter, shrinking fast

the reason mercury is shrinking is because its cooling core

well look inside the planet to see if we can learn more

mercury has a large metallic core, 85% of its radius

which is very large for a planet, in which we’ll discuss

when the core does cool over this amount of time

a planet will shrink. you have learned this in this rhyme

when the planet’s core cools, the surface shrinks with it

causing riffs and valleys to occur, looking like a raisin, i admit

to shrink, heat must’ve escaped out of its cooling core

this heat must havd escaped through its mantle via heat pipes like a door

[chorus]

within the first planet, there’s a cooling emergency!
this planet’s shrinking much faster, yes i am mercury

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