Glass Flask

An erlenmeyer flask corked with a liquid with bubbles inside. 

Potion With Bubbles

An almost-full flask or beaker with a triangular point to empty its contents, a stirring rod and measuring lines on it.

An Erlenmeyer flask containing a liquid substance. 

An Erlenmeyer flask containing liquid, with two sparkles around it.

Two empty flasks, a beaker and an erlenmeyer or conical flask.

A silhouette of triangle bottomed Erlenmeyer shaped scientific flask or beaker.

A beaker, flask, or vase with a tube stem and a triangular or conical base.

A stack of four books with an Erlenmeyer flask on top.