From the Ted Talk by Anjali Tripathi: Why Earth may someday look like Mars
Unscramble the Blue Letters
So you might think, well, does this make the planet cease to exist? And this is a question that ppleoe wdenreod when they looked at our solar system, because planets csleor to the Sun are rkocy, and planets further away are bigger and more gaseous. Could you have started with something like jtpiuer that was actually close to the Sun, and get rid of all the gas in it? We now think that if you start with something like a hot Jupiter, you actually can't end up with Mercury or the Earth. But if you started with something smaller, it's possible that enough gas would have gotten away that it would have significantly impacted it and left you with something very different than what you started with.
Open Cloze
So you might think, well, does this make the planet cease to exist? And this is a question that ______________ when they looked at our solar system, because planets ______ to the Sun are _____, and planets further away are bigger and more gaseous. Could you have started with something like _______ that was actually close to the Sun, and get rid of all the gas in it? We now think that if you start with something like a hot Jupiter, you actually can't end up with Mercury or the Earth. But if you started with something smaller, it's possible that enough gas would have gotten away that it would have significantly impacted it and left you with something very different than what you started with.
Solution
people
wondered
jupiter
rocky
closer
Original Text
So you might think, well, does this make the planet cease to exist? And this is a question that people wondered when they looked at our solar system, because planets closer to the Sun are rocky, and planets further away are bigger and more gaseous. Could you have started with something like Jupiter that was actually close to the Sun, and get rid of all the gas in it? We now think that if you start with something like a hot Jupiter, you actually can't end up with Mercury or the Earth. But if you started with something smaller, it's possible that enough gas would have gotten away that it would have significantly impacted it and left you with something very different than what you started with.