I have background in static/dynamic/thermodynamic physic. I am reading on quantum physics and quantum entanglement. Me and some of my colleagues were wondering on the properties that are shared between two entangled particles or structures (I read that they can do it on molecule size structures on Wikipedia). The exact question would be : is there energy level conservation between the two partciles, i.e. speed? Or is it just observable in a matter of particle spin?