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Science Trek

Trees: Honor the Trees

Why do we "knock on wood?"

Aired 01/01/2020 | Rating TV-G

Science Trek

Trees: Honor the Trees

Clip: Special | 1m 6sVideo has Closed Captions

Why do we "knock on wood?"

Trees play a role in a number of religions and cultures. Find out more about sacred trees and why we “knock on wood.”

Aired 01/01/2020 | Rating TV-G

Science Trek is a local public television program presented by IdahoPTV

Major Funding by the Laura Moore Cunningham Foundation and the Idaho National Laboratory. Additional Funding by the 360 Immersive, the Friends of Idaho Public Television and the Corporation for Public Broadcasting.

Trees: More Than Just Wood

Video has Closed Captions

Is there part of a tree in your lip stick? (1m 6s)

Trees: Full Show

Video has Closed Captions

Trees are the oldest, tallest and heaviest things on Earth. How do they grow and survive? (28m 48s)

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Science Trek is a local public television program presented by IdahoPTV

Major Funding by the Laura Moore Cunningham Foundation and the Idaho National Laboratory. Additional Funding by the 360 Immersive, the Friends of Idaho Public Television and the Corporation for Public Broadcasting.

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