When a beaker of water is heated its volume increases a little because the particles are

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As the water is heated, the molecules move faster and a little further apart.
Just want to call your attention to your post.
"When a beaker of water is heated its volume increases a little because the particles are........"
When one reads this question one wonders if it's the water that is expanding or if it's the beaker that is expanding. Actually the volume of the beaker AND the volume of the water expands.