I was watching tutorial on making particle system to create explosion effect in unity 2.0 but the unity interface is different on the new version , so i went to you tube to find tutorial to the new version but i found that i don’t have min energy or max energy ,no energy at all ,plz can some body help .
Use the legacy particle system.
Could you give me directions plz ,i only found particle system on the GameObject area ,but maybe you’re meaning something else !!!
Thanks for responding
http://www.csallen.co.uk/unity-projects/using-the-legacy-particle-system-with-unity-3-5/
This should help!
-Dak
That’s not exactly helpful to advise people to use the old system instead of learning the new (and improved) one 
The documentation for the new particle system in 3.5 should help you to transition to the new tool.
http://unity3d.com/support/documentation/Manual/Particle%20Systems
To answer your specific question. “Energy” from the legacy particle system is called “Lifetime” in the new one.