Balance Scale: Heavier, Lighter, Equal

Two objects sit on a balance scale. Which side will tip down? Predict whether the left side is heavier, lighter, or the same as the right, then watch the scale reveal the answer.

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Reference Guide

How a Balance Scale Works

  • A balance scale has two pans connected to a central beam.
  • The heavier side tips down.
  • When both sides weigh the same, the beam stays level.
  • Scientists use balance scales to compare masses precisely.

Measurement Words

  • Heavier means it has more mass and tips the scale down.
  • Lighter means it has less mass and the scale tips up on that side.
  • Equal means both sides have the same mass and the beam stays flat.
  • Weight is how heavy something feels due to gravity.

Difficulty Levels

  • Learn gives pairs with a big weight difference so the answer is easy to guess.
  • Practice uses pairs that are closer in weight.
  • Challenge can include objects that weigh exactly the same.

Standards Covered

  • K.MD.1 - Describe measurable attributes of objects, such as length or weight.
  • K.MD.2 - Directly compare two objects and describe which is heavier, lighter, or the same.
  • 1.MD.1 - Order three or more objects by length or weight; compare two using indirect measurement.