Instead, you would use a digital balance or a precision scale that can measure very small weights. Here's how you would do it:
1. Zero the scale: Make sure the scale is properly calibrated and set to zero.
2. Prepare the worm: Gently place the worm on a small piece of paper or a weighing dish. Avoid handling the worm too much, as this could stress it.
3. Weigh the worm: Carefully place the paper/dish with the worm on the scale and record the weight.
It's important to handle the worm with care throughout the process!