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

Flask With Stirring Rod

An electric train coming out of a tunnel.

Train Coming Out Of A Tunnel

A test tube or science beaker with a round base containing a bubbly liquid.

A triangular based beaker with a narrow rim and bubbles.

An electric motorcycle of motorbike facing sideways.

A busy and overworked manager or employee surrounded by charts, graphs, and notifications.