This video will really get your kids thinking (bonus points in you do this live for your classes). I always love to see what the explanations are that the students come up with.
This video is a fun way to introduce your students to the concept of intermolecular forces. Afterward, you can explain how this was done. I am not going to give it away here, but you can find the solution here.
If you are looking for a tie in to the NGSS it fits with Science Practice: Constructing Explanations and Designing Solutions, HS-ESS2-5 Water, and HS-PS1 Matter and Its Interactions
