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1. Sequence One
ONE
1

2. If it weren’t for trees,
we would not be able
to breathe.
ONE
2

3. In fact, we would never have
evolved in the first place: trees
are the mini oxygen factories
ONE
that make animal life possible.
3

4. They have been on earth over
300 million years.
ONE
(Humans have been on earth
less than 3 million.)
4

5. And there are over 300 billion
trees in the United States alone.
ONE
That’s one thousand trees for
every person.
5

6. From trees we get fruit,
oil, coffee, tea, rubber, and
(of course) the paper you’re
ONE
holding.
The oldest living thing on
the planet—dated at 5,000
years old—is a tree.
(So is the largest living thing,
but we’ll get to that later.)
6

7. Our ancestors relied on trees for
fuel and to build shelter, so they
felled a lot of them.
ONE
7

8. You would not have gotten far
in the New World (or the Old)
without knowing your trees.
ONE
But how many can you identify
today?
8

9. About 30 minutes from now
you will recognize plenty.
ONE
Ready?
9

10. Take a look at these two leaves.
ONE
10

11. The one at the top is from an
oak tree; the one at the bottom o a
is from a maple. k
ONE
p
l
a
m
e
11

12. You probably recognize the
maple from the Canadian flag,
but it’s also the most common
ONE
tree in 16 us states.
12

13. The sap of maple trees is used
to make maple syrup, a part of
the American diet for hundreds
ONE
of years.
13

14. The oak is the most common
tree in 8 states.
ONE
14

15. Can you tell a maple from
an oak?
ONE
Notice that the pattern of veins
in the two leaves is different:
the oak veins are in a fishbone
pattern; maple veins are in a
fan shape.
15

16. If you’re a fan of maple syrup,
this should be easy to remember.
ONE
16

17. So have you got these two fixed
in your mind?
ONE
17

18. Sure?
ONE
18

19. Okay, find a maple leaf here.
ONE
19

20. It’s this one.
ONE
20

21. And find an oak leaf here.
ONE
21

22. ONE
22

23. There is either a maple or an oak
leaf here. Your task is to find it
and name it.
ONE
23

24. Maple.
ONE
24

25. Too easy? Let’s make it more
interesting.
ONE
This is the leaf from an aspen
tree. Aspen leaves are shaped
like a spade. (Try remembering
it this way: a-spen / a-spade.)
Since aspen leaves dangle from
thin stalks, they rustle and
shimmer in the slightest breeze.
So they’re often called
“trembling aspens”.
25

26. This is the leaf of a
sweetgum tree.
ONE
26

27. You could confuse it with a
maple, but the sweetgum is
more of a star shape.
ONE
Not sweetgum
27

28. And this is the leaf from a tupelo
tree (like “toop-a-low”).
ONE
Tupelo is the town in Mississippi
where Elvis was born.
Its leaf has no teeth, giving it
a smooooth edge.
28

29. So now we have five leaves.
ONE
Tupelo Oak
Aspen
Maple Sweetgum
29

30. Got them all?
ONE
30

31. This one—the one with the
fan-shaped veins—is a…what?
ONE
31

32. Maple.
ONE
32

33. The one shaped like a spade
is a..?
ONE
33

34. An aspen.
ONE
34

35. The star-shaped leaf is a..?
ONE
35

36. Sweetgum.
ONE
36

37. These leaves with fishbone
veins are..?
ONE
37

38. Oak leaves.
ONE
38

39. And the one with the
smooth edge?
ONE
39

40. Tupelo.
ONE
40

41. All the leaves we’ve seen so far
are from trees that are called
deciduous (“di-sid-you-us”),
ONE
which means they shed their
leaves for the winter.
Got them all?
41

42. Sure?
ONE
42

43. So what tree is this leaf from?
ONE
43

44. Oak.
ONE
44

45. And this?
ONE
45

46. Aspen.
ONE
46

47. One of these is a tupelo.
Which?
ONE
47

48. ONE
48

49. Of course, usually the leaves you
are trying to identify will be on
a tree, like this.
ONE
So what tree do you think
this is?
49

50. This is an oak tree.
ONE
50