Videos of Demos and Lessons.  Links to lessons below. 

8.1
8.2
8.3
8.4
STEM 17-18

8.1 Physical Matter and Energy

8.1.1 Model Atomic Structure
8.1.5 Model Heat Expansion
8.1.6 Conservation of Matter
8.1.6 Conservation of Mass
8.1.2 Water Properties Lesson
1st Video Attempt
8.1.3_Chemical Reactions
8.1.6_WGIMCO Conservation of Matter

8.2 Physical Energy Stored and Transferred in Systems

8.2 PBS Unit PE and KE
8.2.2 Plan and Conduct Inv.

8.3 Life Systems Store and Transfer Matter and Energy

8.3.1_Starburst Energy Levels
More to Come

8.4  Earth Interactions between Natural Systems and Resources

More to Come in the Meantime Here are Others