This week’s GIF science lesson highlights one of the more colorful ways that a drastic shift in pH, can affect a plant.

In nature’s daily show, the morning glory is a master of the costume change. With normal fluctuations in pH levels, its petals can shift in color from blue to pink, and sometimes red in the course of a single day. But unless you camped out in front of the plant all day, you wouldn’t see the transformation. Here’s a video showing normal color fluctuations.