BrainPop - has an excellent video explaining the different layers, as well as a timeline game that teaches you about geological discoveries and advancements!
KidsGeo - quick video about the layers. Read on to learn about the crust!
WatchLearnKnow - this video goes beyond the layers of the Earth if you are interested in knowing about Pangea and plate tectonics.
And lastly, here is our favorite resource: Journey to the Centre of the Planet!
Make sure to learn as much as you can and record it on your See Think Wonder note taking sheet. On Friday, we are going to use this knowledge to make Earth models!