Mystery Tree Challenge - Arbor Day Foundation

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(These are spruce trees. Most spruce have 4-sided, stiff, sharp-pointed needles.) OR Does your spruce sample have blue-green or silvery blue needles with a cone that is 2"-4" long? If so, GO TO #14. Does your spruce sample have a dark green needles and a cone that is 4"-8" long? If so, GO TO #15.
You have a HEMLOCK. Its needles are arranged in flattened sprays along the twig. Native Americans and early settlers valued the hemlock for the tannin in its bark which was used to tan leather. (The hemlock is just one of several kinds of conifers that have flat needles. Others include fir, douglasfir, and baldcypress.) Please take your tree sample to your teacher and he/she will let you know if you have correctly identified your mystery tree.
Page 1 and 2: Mystery Tree Challenge Classroom Ac
Page 3 and 4: This activity is designed for stude
Page 5 and 6: Clue Sheet #36 - The chestnut and l
Page 7 and 8: Examples of Simple leaves Examples
Page 9 and 10: Mystery Tree Challenge Student Work
Page 11 and 12: Are the leaves SIMPLE (one blade at
Page 13 and 14: Are the needles attached... SINGLY,
Page 15 and 16: You have a JUNIPER or EASTERN REDCE
Page 17 and 18: Are the needles FLAT? If so, GO TO
Page 19: Does your sample have short needles
Page 23 and 24: You have a COLORADO BLUE SPRUCE. Be
Page 25 and 26: You have a LARCH. Larches have thei
Page 27 and 28: You have an EASTERN WHITE PINE. Whi
Page 29 and 30: Do the SIMPLE leaves have an OPPOSI
Page 31 and 32: Are the simple, opposite leaves LOB
Page 33 and 34: Are the leaves PINNATELY COMPOUND (
Page 35 and 36: OR Are there generally 3-5 BLADES t
Page 37 and 38: You have an ASH. There are a number
Page 39 and 40: These are MAPLE trees. Maples have
Page 41 and 42: You have a CATALPA. Catalpa trees h
Page 43 and 44: Is the seed or fruit an ACORN in a
Page 45 and 46: OR Are the LEAVES LONG with SHARP T
Page 47 and 48: You have a CHESTNUT. The American C
Page 49 and 50: You have an EASTERN REDBUD. These s
Page 51 and 52: These are OAK trees. 58 species of
Page 53 and 54: Your sample is a BITTERNUT HICKORY.
Page 55: If you choose to replace any or all
Page 58: Please take your tree sample to you
Page 62 and 63: Please take your tree sample to you
Page 70 and 71:
Please take your tree sample to you
Page 73:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83:
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Mystery Tree Challenge - Arbor Day Foundation

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