Trees
Questions
1. Have you ever climbed a tree?
2. What kind of trees are there where you live?
3. How far back do you know your family tree?
4. What would life be like if money grew on trees?
5. Do you have a Christmas tree during Christmas?
6. Are there many trees in your city?
7. Are your legs like tree trunks?
8. “The tree is known by its fruit” – Do you agree?
Videos
What makes a tree grow tall? And do trees ever stop growing? Explore how photosynthesis and gravity can affect and limit the height of trees.
[more]
Reaching heights of over 100 meters, Californian sequoias tower over Earth’s other 60,000 tree species. But even these behemoths seem to have their limits: no sequoia on record has been able to grow taller than 130 meters. So what exactly is stopping these trees from growing taller, forever? Valentin Hammoudi investigates why trees have limited heights.
Lesson by Valentin Hammoudi, directed by Doug Alberts.
Lesson by Valentin Hammoudi, directed by Doug Alberts.
[less]
Category: Nature & Environment | Science
As professional arborists, brothers-in-law Tom Otto and Shaun Sears are quite adept at climbing trees. The cats that they rescue are not. And with a plethora of trees—and cats—around Seattle, they decided to put their off
[more]
hours to good use and return scared, stuck kitties to their worried owners. Working completely off donations, these two cat lovers are helping keep Seattle’s free-climbing felines grounded.
[less]
Category: Nature & Environment
Tucked away in a corner of London’s Royal Botanic Gardens, there is a very peculiar plant. At first glance, it resembles a stumpy palm tree, but this ancient specimen is incredibly rare. It is, in fact,
[more]
the very last of its kind on Earth. Encephalartos woodii is a cycad, a type of plant that once dominated the planet during the Jurassic Period. Over the millennia, the age of the cycad came to an end. And in the case of Encephalartos Woodii, we may have been left with only one—a single male specimen. This tree is the loneliest bachelor on Earth.
[less]
Category: Nature & Environment
Explore what makes trees a vital part of cities, and how urban spaces throughout history have embraced the importance of trees.
—
[more]
By 2050, it’s estimated that over 65% of the world will be living in cities. We may think of nature as being unconnected to our urban spaces, but trees have always been an essential part of successful cities. Humanity has been uncovering these arboreal benefits since the creation of our first cities thousands of years ago. So what makes trees so important to a city’s survival? Stefan Al explains.
Lesson by Stefan Al, directed by Mette Ilene Holmriis.
Lesson by Stefan Al, directed by Mette Ilene Holmriis.
[less]
Category: Geography & Travel | Nature & Environment