Ctrl + L or Command + L: highlights the website address so you can quickly copy & paste to send it to someone

Ctrl + Shift + T or Command + Shift + T: reopen a closed tab, can be used to open multiple closed tabs even after the window has been closed. 

Custom Google Search: Create a custom search that only takes students to the sites you have selected. This is great for student research projects, you can limit them to only credible websites that you have selected. Directions

InstaGrok: Research any topic with an interactive concept map, that you can customize and share. It only searches safe websites. Here is an intro video that shows how the tool can be used.