Engines

Sprout sat down next to me while we were eating our dessert and said, "I want to talk about cars and motorcycles and how they work."

Me: "Hmm. Okay, well I don't know very much about that."

Spud: "Okay, well just tell me about how engines work."

Me: "How about we find a video?"

So we watched these two videos and I learned quite a bit! 

http://youtu.be/0Ko0U8oTLRs

http://youtu.be/aAWxZRuBXtw

Hooray for the Internet and YouTube!