We have just started a new unit: ENERGY.
I remember you that in the "6th Grade" section, you can find many videos about this topic, like the following ones:
WHAT IS ENERGY?
CLICK HERE
HOW TO SAVE ENERGY
CLICK HERE
GLOBAL WARMING: video
CLICK HERE
GREEN HOUSE EFFECT: video
CLICK HERE
ENERGY SOURCES: clear explanations in Spanish
CLICK HERE