In this activity, you’ll perform an experiment on a cardboard tree with water, salt, and liquid bluing. Once you see the salt crystals blooming on the tree–which once started in the liquid as the tree’s “roots,” you’ll witness capillary action in, well, action!

The IF/THEN® Collection is the largest free resource of its kind dedicated to increasing access to authentic and relatable images of real women in STEM.

In their digital library, you will find thousands of photos, videos and other assets that authentically represent women in the fields of science, technology, engineering, and math (STEM).  The content features careers as diverse as shark tagging, fashion design, and training Olympic athletes, and nudges public perceptions in a more realistic direction that illuminates the importance of STEM everywhere.