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What are trees made of?

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Let’s Begin…

If someone asked you where the mass of a tree comes from, what would you say?  Have you ever really thought about it as you climbed through tree branches or walked through a forest? Is it the soil the plant is rooted in, the atmosphere above it, what do you think?  Watch this lesson and find out more!

Watch the video and finish the Think section to complete the lesson.


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