Popcorn in Salt This experiment is SUPER easy to set up and kiddos can experiment with it over and over again! Grab a few materials and go! Find more about how to set up the Popcorn in Salt experiment on this blog! Materials ready! Put the salt and popcorn in the jar. Roll the popcorn around in the salt. Tap, tap, tap the jar and see what happens! Want to pair this experiment with a book? Try The Popcorn Princess Grab the the book here! (affiliate link) Here's the recording sheet we used! Click the pic to download a copy!