If you have four boxes using Springs scales, how would you know which one has the most mass?

To determine which box has the most mass using four spring scales, you can follow these steps:

1. Place one box on each spring scale.
2. Note down the readings provided by each spring scale.
3. Compare the readings of the four scales.
4. The box with the highest reading on the spring scale has the most mass.

By comparing the readings of the spring scales, you can easily identify the box with the highest mass.