Question

points possible: 1.00 when taking a measurement, its important to... (select all that apply) select one or more: be on eye - level with the meniscus read the volume measurement at the bottom of the meniscus avoid estimating any of the digits in the measurement read the volume measurement at the top of the meniscus

Explanation:

When taking liquid volume measurements in a graduated - cylinder or similar instrument, being on eye - level with the meniscus helps avoid parallax errors. Reading the volume at the bottom of the meniscus is the correct procedure for most liquids (concave meniscus). Estimation of the last digit in a measurement is often necessary for accuracy. Reading at the top of the meniscus is incorrect.

Answer:

A. Be on eye - level with the meniscus
B. Read the volume measurement at the bottom of the meniscus