question: What sentence would provide a factual answer to this question: "little balls of H2O on the inside of a closed window came from"

answer: beads of water are formed by water vapor condensing

question: What sentence would provide a factual answer to this question: "A bucket full to the brim with water is left outside. If the day is warm, by the end of the day, the bucket will be"

answer: if a liquid disappears then that liquid probably evaporated

question: What sentence would provide a factual answer to this question: "the Earth rotating on its axis causes the sun to appear to move across the sky during what?"

answer:
the Earth rotating on its axis causes the sun to appear to move across the sky during the day