How can you observe the law of
conservation of energy in action
at the skate park? how does this
show that energy was not
created or destroyed?

I'm also learning about the law of conservation of energy in Science. I hope my answer helps you. The law of conservation of energy states that energy cannot be created or destroyed but can be converted or transferred. So i'm young and don't really know what a skate park is and so I can't help you with that, but I can tell you what converting and transferring energy means. So basically converted and transferred are pretty similar. So when you're eating a burger which has chemical energy, it is transferred to mechanical energy if you go out and ride a bicycle. Another example is when the Sun which is thermal energy shines on the apple tree, it is converted to chemical energy because the apple has chemical energy. Transferred is pretty similar.

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explanation: