Dont know!
You would measure it by mililiters.
cubic centimeter
You would use Volume.
To measure the volume of a teardrop, you would typically use the metric unit of measurement known as milliliters (mL) or cubic centimeters (cm³). This is because teardrops are small, liquid volumes that can be accurately measured using these units. To measure the volume of a teardrop, you would need to carefully collect the teardrop in a calibrated container with volume markings and then read the volume measurement indicated on the container.
A ruler. Measure one of the sides, and take that measurement times itself three times, and you'll have the volume.