Question

What do you call the curved, upper surface of water that commonly appears when using a graduated cylinder? Describe what causes this.

Answer 1

The answer to this question would be: meniscus

The meniscus is a curved surface in water that was caused by the surface tension. The interaction of the water and the container will determine whether the curve will be convex or concave. Since water has an adhesion to the glass making the meniscus that was formed become concave meniscus