STEM in early childhood

Please review the two STEAM/STEM VIDEOS. WHAT IS STEAM/STEM? Summarize what you learned from the videos and reflect on which ideas you can use in your classroom. Explain the research method and how you could teach preschoolers the stages of the research process.
Supplies, Design Phase, Engineering, Testing Phases, Redesign and Engineering, Retest, Conclusion and Application.

videos are attached 

STEM Video in a Pre-K Classroom,  https://www.youtube.com/watch?time_continue=20&v=HglYz0h2n2E&feature=emb_title

Pre-K STEAM Project Video,  https://www.youtube.com/watch?v=IO9C1pi5O5c&feature=emb_title