Windows PC users – press and hold control (Ctrl) and then press F
Mac users – press and hold Command and then press F
To pull up the “find” search box with in the pdf document.
If you need more help, here is a tutorial
Centering your K-12 science instruction around phenomena can build student engagement and understanding. This webinar will explore key aspects of science instruction, share NGSS-aligned resources for the new school year, and consider strategies (like Driving Question Boards) that support science in your K-12 (possibly virtual) classrooms.