Try these Valentine's day STEM challenges with your students! If you are exploring the heart, sound, or biomedical engineering, this is a great hands-on activity for students to try. They will create a stethoscope to hear a heartbeat (or sound through earbuds or a speaker). Students will also explore force and motion with a paper heart tower that is easy to set up but tricky to master. Students will need to use trial and error as well as balancing skills to craft this tower! ❤️ What You'll Get