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A classic steam locomotive puffs smoke while traveling along a track with mountains in the distance.
Meet Number 99, the bravest steam engine in the valley! Every morning, with a loud “Toot-toot!” and a giant puff of white smoke, Number 99 begins its grand journey toward the distant, jagged mountains. Did you know that classic steam engines like this one use heat to turn water into steam? That powerful steam is what pushes the heavy pistons to make those big wheels turn!
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