Leaf Identication Biology, Classification Lesson PowerPoint, with Built-in Quiz

• Which leaf below is a red maple, and which
is a sugar maple?
Copyright © 2010 Ryan P. Murphy

http://sciencepowerpoint.com/Website Link:

 New Area of Focus: Leaf Identification.

• Activity! Please describe the leaf below.

• Answer! It’s green, has round things that
spread out into shapes that look pointy.

• Answer! It’s green, has round things that
spread out into shapes that look pointy.
Some are pointy while others are rounded,
kind of. C’Mon, it’s looks like a leaf.

• Leaves need to identified based on a
series of different criteria.

series of different criteria. There are
thousands and thousands of types of
plants,

plants, and most are green,

plants, and most are green, have round
parts, and so on…

plants, and most are green, have round
parts, and so on… So specific criteria is
required to accurately identify them.

• Plants Part V Available Sheet

• Please trace the leaf / do a rubbing in your
journal.

• Blade: The entire leaf unit. Sometimes this
is made up of several smaller leaflets.

• Veins: Contain vascular tissues.

• Three basic types of leaf venation.

• Leaf Margin: The edge of the leaf.

• Leaf Base: Name for the blade close to the
stem

• Leaf Apex: The tip of the leaf.

• The Petiole: Thin stalk that connects the
leaf blade to the stem.

• Review! Describe each word below on or
around your leaf.
– Describe your leaf so someone else could
identify it without seeing it.

• Answer to leaf description.
–Leaf is broken into eight smaller
leaflets, veins are pinnate, leaf margin
has small spines at end of leaflet, base
is rounded, leaf apex has three pointy
leaflets, and petiole is long, ¼ the leaf
size. No stipule present.

• Answer to leaf description.
–Leaf is broken into eight smaller
leaflets, veins are pinnate, leaf margin has
small spines at end of leaflet, base is
rounded, leaf apex has three pointy
leaflets, and petiole is long, ¼ the leaf size.
No stipule present.

• Please choose this leaf and sketch / rub.
– We will now look at leaf blade shape.
– Which leaf blade shape represents your leaf?
Visit an online dichotomous key with your leaf at…
http://www.arborday.org/trees/whattree/?TrackingID=908 also
http://www.oplin.org/tree/leaf/byleaf.html

• Is your leaf Simple or Compound?

• Compound Leaves: They appear in groups
and are made up of leaflets.

• Compound Leaves
–Palmate: Leaflets form fan shape.

• Compound Leaves
–Pinnate: Leaflets are opposite each
other on the stem.

• Compound Leaves
–Bipinnate: Leaflets are in pairs of pinnate
groups.

• Simple Leaf: They appear alone.

• Does your leaf fit any of these for leaf
arrangement?

• Which leaf type fits your leaf?
–Linear: Narrow and sometimes parallel.

• Lanceolot: Lance shaped, spear point.

• Oblong: Much longer than wide, with
nearly parallel sides.

• Ovate: Egg-shaped, broader at the base
than the tip

• Chordate: Heart-shaped, either the leaf
shape or base.

• Reniform: Kidney Shaped.

• Spatulate: Shaped like a spoon or spatula.

• Orbicular: Round

• Elliptic: Shaped like an ellipse, wider at the
center and tapering to equal tips

• Which leaf margin is your leaf?

• Describe your leaf based on all that you
have recorded in your journal.

• Answers to Leaf Identification: An alternating
simple leaf with an elliptic shape, and
serrated margin.
– Beech Tree (Fagus grandifolia)

• Sketch the leaf below.
– I will run through the slideshow on leaf
identification. Record the terms that apply to
this leaf.

• Answers: An alternating simple Leaf, Oblong
to Ovate, with lobate margins
– White Oak (Quercus alba)

• A few common leaves in our area and
some tricks to learn them.
– Red Maple

• Red Maple Shape:

• Sugar Maple

• Sugar Maple Shape:

• Maple Syrup: Sugar in the roots travels up
the phloem in the tree to become energy for
leaves in spring (Mid-Feb to April).

• Maple Syrup: Sugar in the roots travels up
the phloem in the tree to become energy for
leaves in spring (Mid-Feb to April). We can
tap this sugar, boil away the water…and get
maple syrup….Yum!

• Class Poll: What is better? The real thing
or the fake stuff.
Real Thing ______ Fake Stuff ________

• Which leaf below is a Red Maple, and which
is a Sugar Maple?

• If the tree has acorns: That is usually a dead
give away that the tree is some type of oak.

• Red Oak: Lobed margins, with pointy tips.

– Points could draw blood?, blood is red???

– Points could draw blood?, blood is red???
Darn you
Red Oak!

• White Oak: Also lobed, but these lobes are
rounded.

• Which is a red oak, and which is a white oak?

• Beech Tree Leaf

• This is what a beechnut looks like. They
turn brown after they fall.

• Birch Tree Leaf: Leaf shape is ovate.
– Leaf venation is pinnate

• Which is a Beech and Which is a Birch?

• Conifers: Describe them based on these
pictures of them.

• There are two general types of trees in this
area.

area.
– Gymnosperms: Cone bearing, needles.

area.
– Gymnosperms: Cone bearing, needles.
– Angiosperms: Flowering, broadleaf, Foliage.

• Conifers are not defined as being evergreen
or having needles instead of regular leaves,

though that's usually the case.

though that's usually the case. Conifers, as
their name hints, bear cones.

• Because we are focusing identification, we
will cover three types of conifers.
– White Pine (Pinus strobis)

• White Pine: White has five letters, white pines
have needles in groups of 5.

1
2 3 4 5
W H I T E

1
W
H
2
I
3
T
4
E
5
W H I T E

• Red Pines have needles in groups of 2.
– 2 is less than 5, and Red has fewer letter than
white.
1
2

• Red Pines have needles in groups of 2.
– 2 is less than 5, and Red has fewer letter than
white.
R
D1
2
E

• Fir are friendly to the touch

• Spruce are spiky to the touch.

• Eastern Hemlock: The needles are
narrow, flat and soft, less than 1 inch long.

• Eastern Hemlock: The needles are
narrow, flat and soft, less than 1 inch long.
Dark green above, with two white lines
below.

• Northern White Cedar: The needles look
like scales.

• Eastern White Cedar:

• Atlantic White Cedar:

• Atlantic White Cedar:
Learn more about conifers at…
http://www.backyardnature.net/conifers.htm

• Quiz! 1-11, Name that tree based on the
leaf / needles.

“Come just a bit
closer and I
will spike
you!”

“Hi!”, “Just wanted to say
hello before you finish.
Nice to meet you, goodbye
and good luck on the quiz.”

• Bonus: These creatures lived in a tree and
made a special type of juice that make them
bounce.

• Answer to the Quiz! Name that tree based
on the leaf / needles.

“Please” “Everyone just be
nice.” “There is no point in
fighting.” “I’m sure we can
all just get along.”

• Bonus: These creatures lived in a tree and
made a special type of juice that make
them bounce.

• Bonus: The Gummy Bears. (1985-1989)

• Bonus: The Gummy Bears. (1985-1989)
Quiz
Wiz

•Areas of Focus in The Plant Unit:
•Plant photo tour, Plant Evolution, Importance of
Algae, Lichens, The Three Types of Lichens, Non-Vascular
Plants, Bryophytes, Seedless Vascular Plants (Ferns), Seeds, Seed
Dormancy, Factors that Break Seed Dormancy, Germination, Parts
of a Young Plant, Monocots and Dicots, Roots and Water, Types of
Roots, Water Uptake and Photosynthesis, Plant Hormones, Types of
Plant Tissues, Xylem and Phloem, Woody Plants, Leaves, Light and
Plants, Transpiration, Guard Cells, Leaf Identification, Plant Life
Cycles, Seed Plant Life Cycles, Parts of a Flower, Matured Ovaries
(Fruits), Types of Fruit and much more.
•Full unit can be found at…
•http://sciencepowerpoint.com/Plant_Botany_Unit.html

• This PowerPoint is one small part of my Botany
Unit. This unit includes….
– A 5 part 2,700 slide PowerPoint roadmap full of built-in
hands-on activities, quizzes, projects, and much more.
– 13 page bundled homework package that chronological
follows the slideshow, modified version, answer keys, and
detailed lesson notes.
– 2 PowerPoint Review Games with answers, videos
links, rubrics, crosswords, projects, curriculum
guides, materials lists, and much more.
– http://sciencepowerpoint.com/Plant_Botany_Unit.html

• More Units Available at…
Earth Science: The Soil Science and Glaciers Unit, The Geology Topics
Unit, The Astronomy Topics Unit, The Weather and Climate Unit, and The
River and Water Quality Unit, The Water Molecule Unit.
Physical Science: The Laws of Motion and Machines Unit, The Atoms and
Periodic Table Unit, Matter, Energy, and the Environment Unit, and The
Science Skills Unit.
Life Science: The Diseases and Cells Unit, The DNA and Genetics Unit,
The Life Topics Unit, The Plant Unit, The Taxonomy and Classification
Unit, Ecology: Feeding Levels Unit, Ecology: Interactions Unit, Ecology:
Abiotic Factors, The Evolution and Natural Selection Unit and The Human
Body Systems and Health Topics Unit

• Please visit the links below to learn more
about each of the units in this curriculum
– These units take me about four years to complete
with my students in grades 5-10.
Earth Science Units Extended Tour Link and Curriculum Guide
Geology Topics Unit http://sciencepowerpoint.com/Geology_Unit.html
Astronomy Topics Unit http://sciencepowerpoint.com/Astronomy_Unit.html
Weather and Climate Unit http://sciencepowerpoint.com/Weather_Climate_Unit.html
Soil Science, Weathering, More http://sciencepowerpoint.com/Soil_and_Glaciers_Unit.html
Water Unit http://sciencepowerpoint.com/Water_Molecule_Unit.html
Rivers Unit http://sciencepowerpoint.com/River_and_Water_Quality_Unit.html
= Easier = More Difficult = Most Difficult
5th – 7th grade 6th – 8th grade 8th – 10th grade

Physical Science Units Extended Tour Link and Curriculum Guide
Science Skills Unit http://sciencepowerpoint.com/Science_Introduction_Lab_Safety_Metric_Methods.
html
Motion and Machines Unit http://sciencepowerpoint.com/Newtons_Laws_Motion_Machines_Unit.html
Matter, Energy, Envs. Unit http://sciencepowerpoint.com/Energy_Topics_Unit.html
Atoms and Periodic Table Unit http://sciencepowerpoint.com/Atoms_Periodic_Table_of_Elements_Unit.html
Life Science Units Extended Tour Link and Curriculum Guide
Human Body / Health Topics
http://sciencepowerpoint.com/Human_Body_Systems_and_Health_Topics_Unit.html
DNA and Genetics Unit http://sciencepowerpoint.com/DNA_Genetics_Unit.html
Cell Biology Unit http://sciencepowerpoint.com/Cellular_Biology_Unit.html
Infectious Diseases Unit http://sciencepowerpoint.com/Infectious_Diseases_Unit.html
Taxonomy and Classification Unit http://sciencepowerpoint.com/Taxonomy_Classification_Unit.html
Evolution / Natural Selection Unit http://sciencepowerpoint.com/Evolution_Natural_Selection_Unit.html
Botany Topics Unit http://sciencepowerpoint.com/Plant_Botany_Unit.html
Ecology Feeding Levels Unit http://sciencepowerpoint.com/Ecology_Feeding_Levels_Unit.htm
Ecology Interactions Unit http://sciencepowerpoint.com/Ecology_Interactions_Unit.html
Ecology Abiotic Factors Unit http://sciencepowerpoint.com/Ecology_Abiotic_Factors_Unit.html

• Thank you for your time and interest in this
curriculum tour. Please visit the welcome / guide on
how a unit works and link to the many unit previews
to see the PowerPoint slideshows, bundled
homework, review games, unit notes, and much
more. Thank you for your interest and please feel
free to contact me with any questions you may have.
Best wishes.
• Sincerely,
• Ryan Murphy M.Ed
• ryemurf@gmail.com

• The entire four year curriculum can be found at...
http://sciencepowerpoint.com/ Please feel free to
contact me with any questions you may have.
Thank you for your interest in this curriculum.
Sincerely,
Ryan Murphy M.Ed
www.sciencepowerpoint@gmail.com

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