[Verse 1] Shoes on the classroom floor, Sunlight coming through the door. Compared with the ground, I’m standing still; My position here has stayed the same. But Earth is turning as we’re learning, Moving round the Sun as well. Another frame, another description— There’s more to “still” than words can tell. [Chorus] Even the ground needs a frame, Something to compare it with. Still compared with the classroom floor, Moving with Earth around the Sun. Moving compared to what? That’s the question in the song. Name the frame before the motion; Let the comparison come along. [Verse 2] A bus goes thirty miles an hour; We usually mean compared with ground. A seated rider rests beside the window, While the bus moves through the town. We often leave the ground frame unspoken; It helps describe our everyday. To talk about Earth around the Sun, Another frame can help explain. [Bridge] The floor for walking down the hallway, The Sun for Earth’s path through space. Choose the frame that helps describe it; Give your measurement a place. [Final Chorus] Even the ground needs a frame, Something to compare it with. Still compared with the classroom floor, Moving with Earth around the Sun. Moving compared to what? That’s the question in the song. Name the frame before the motion; Let the comparison come along.
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