Mr and Mrs Smiths Life Science: Plant Structure and Function

Day 1

Topic 8-1 What are roots?

Objectives
Compare the characteristics of Dicot and Monocot plant germination.
Describe the structure of a root.
Explain the jobs of roots.
Name the two kinds of root systems.
Draw and Label a root.

State Goals

Classwork-Homework
Vocabulary
Fibrous Root System: root system made up of many thin, branched roots
Taproot System: root system made up of one large root and many small, thin roots
Root Hair: thin, hairlike structure on the outer layer of the root tip
Root Cap: cup-shaped mass of cells that covers and protects a root tip

Kinds of Roots
Tap	carrots, radishes, beets, and sweet potatoes, turnips
Fibrous	grass, wheat, barley
Aerial	English Ivy, Poison Ivy, Trumpet Creeper, or the Virginia Creeper

   Root Parts
             Root hairs: Increase absorption ability
                     Root tip: Where roots grow from
                     Root cap: Covers and protects root tip
                     Transport tubes: Carry water and dissolved minerals.
                                               Carry food from leaves to other parts of plant

  Root Functions
             Anchor plant in soil
                     Take in water and dissolved minerals
                     Stores food in some plants

  Globe Fearon 8-1 What are roots? pp.172-173
                                8-1 What are roots? pp. 146-147

Root Records

Tap and Fibrous Root Picture

  Roots Transparency Studying Plants Milliken 1986 page 6 for lesson

Root Diagram   Draw and label the parts of a root.
               GF 8-4 p.172      PH 9-2 p.226
                       GF Fig 2 p.146

TEC

Prentice Hall 9-1 Roots pp. 225-226

Resources

Roots

Seeds and Plants

Day 2

Topic 8-2 What are stems?

Objectives
Name two kinds of plant stems.
Distinguish between herbaceous and woody stems.
List the functions of plant stems.
Define xylem and phloem.
Describe how events in the life of a tree can affect the growth of its annual rings.

State Goals

Classwork-Homework
Vocabulary
Herbaceous Stems: stem that is soft and green
Woody Stems: stem that contains wood and is thick and hard
Xylem: tissue that carries water and dissolved minerals upward from the roots
Phloem: tissue that carries food from the leaves to other parts of the plant

   Functions of Stems
             Support the leaves
                     Organs of transport
                     Sore food in some plants

Plant Stems

Herbaceous	soft and green
Woody	Contains wood and is thick and hard
Aerial	dandelion, carrots
Climbing	Ivy, sweet potato
Creeping	strawberries and bent grass
Underground	Tubers: Irish potatoes Bulbs: Onions, daffodils, tulips, and hyacinth

   Globe Fearon   8-2 What are stems? pp.174-175
                                   8-2 What are stems? pp. 148-149

     Transport in Plants Demonstration

1	Celery in colored water.
2	Measure height of the colored water after 5, 10, and 15 minutes.
3	Ask class to predict height after 24 hours.
4	Split one celery stalk in half, half way up. Put in two different colors.

Reading the Rings Tree Are Terrific Naturescope 16-20

1	Use tree cookie transparency or draw one from page 16 on board.
2	Read The Inside Story On Rings page 17 -What are tree rings? -Good Years and Bad Years -Moline (Elm City) lost all elm trees to Dutch elm disease.
3	Pass out page 23
4	Discuss Cross Sections A-D
5	Use History of Tree Chart and explain events from birth in 1904.
6	Find events for page 23

TEC

Prentice Hall 9-1 Stems pp. 227-230

Resources

Stems

Woody Dicot Stem

Day 3

Topic Dendrochronology

Objectives
Use cross-dating techniques to find out how old a tree is.

State Goals

Classwork-Homework
Vocabulary
Cross dating: Compares the growth rings from one tree to the growth rings of another tree
Tree rings: circles in cross sections of tree trunks; each pair of light and dark rings represents a year's growth.
Increment borer: a hollow instrument used to drill into the center of a tree to remove a core sample.

How Cross Dating Works

1	Scientists take a core sample from a living tree with reliable annual rings. These were conifer trees growing in the American Southwest.
2	By counting backwards starting with the outer ring (the current year) they can assign each ring a year, then figure out when the tree sprouted and how old it is.
3	find an older tree to compare with a younger tree. -same kind of tree -grown in the same area -must have been alive for part of the time that the younger tree was growing
4	Compare rings to find a match.
5	Assign the same dates to overlapping rings.
6	Find older trees and overlap them

Reading the Rings Part 2

1	Pass out page 24, a cross section from a tree that was used to build an Oklahoma farmhouse.
2	Students must find out when the farmhouse was built by finding out when the tree started growing and when it was cut down.
3	They will also discover some other events during the tree's life.
4	Cut out each core sample. Only one matches.
5	Match up one of the core samples. Do not go through the middle of the tree.
6	When they have a match, count backwards to find the actual date when the core sample matches the cross section.
7	Answer these questions. Student Copy of Questions 1. In what year did the tree sprout? 2. In what year was it cut down? 3. In what year did a fire damage the tree? 4. How many years did it take for the dead branch to be covered? 5. In what year did a drought begin? 6. How long did the drought last? 7. How old was the tree when it was cut down? 8. The farmhouse was abandoned in 1933 only three years after it was built. Look at the core sample around the year 1933. What was happening?

TEC

Resources
Dendrochronology

Principles of Dendrochronology

The Martyred One: The Oldest Living Thing on Earth Killed

Day 4

Topic Dendrochronology

Objectives
Apply principles of dendrochronology to determine a tree's age and to recognize climatic variation;
Analyze and experience how archaeologists can sometimes use tree rings to date archaeological evidence and study past climates.

State Goals

Classwork-Homework
Vocabulary
Dendrochronology: to determine the age of trees, beams, and other timbers
Cambium: the thin layer of living, dividing cells just under the bark of trees

Tree Ring Dating

TEC

Resources
Dendrochronology
Principles of Dendrochronology

Day 5

Topic 8-3 What are leaves?

Objectives
Identify the two main parts of a leaf.
Classify leaves as simple or compound.
Identify the tissue layers of a leaf.

State Goals

Classwork-Homework

Leaf Structure

Blade	food making
Petiole	Stalk: Supports blade
Veins	Tubes carry water and dissolved minerals into and out of the leaf Supports leaf

Kinds of Leaves

Simple	Maple, oak, elm
Compound	Has leaflets: Poison ivy, roses

Leaf Tissues

Epidermis	outer protective layer prevents loss of water
Stomata	tiny openings that open and close controlling water loss; control the exchange of oxygen and carbon dioxide
Mesophyll	most food making occurs here; veins go through this part

Leaf Transparency page 8 Studying Plants Milliken 1986

Globe Fearon 8-3 What are leaves? pp. 176-177
8-3 What are leaves? pp. 150-151

Leaf Diagram     Draw and label leaf structure
           GF 8-9 p.176     PH 9-11 p.233
                   GF Fig 2 p.150

TEC

Prentice Hall 9-1 Leaves p. 231

Resources
Leaf Forms, Shapes, and Margins

Day 6

Topic Leaves

Objectives
Use a tree key to identify leaves.

State Goals

Classwork-Homework
   Keying Out Trees Part 1 Trees Are Terrific Naturescope pages 14-15, 20-22
             Pass out page 20 and work through the tree
             Work through each person at your table.

   Keying Out Trees Part 2
             Pass out pages 21 and 22
             Tell the kids to use the identification key to identify the leaves

TEC

Resources

Day 7

Topic Landscaping

Objectives

State Goals

Classwork-Homework

TEC

Resources

Day 8

Topic 8-4 What is photosynthesis?

Objectives
Explain the importance photosynthesis in plants.
Name the food green plants make.
Write the equation for photosynthesis.

State Goals

Classwork-Homework

Vocabulary
Autotroph: organism that can make its own food
Photosynthesis: process that makes sugar or glucose for plants
Chlorophyll: green material that is needed for photosynthesis
Chloroplast: organelle in plant cell that contains chlorophyll
Heterotroph: organism that cannot make its own food

  Photosynthesis Formula
             One page fill in the blank. Chemical equation.

Globe Fearon 8-4 What is photosynthesis? pp. 178-179
8-4 What is photosynthesis? pp. 152-153

Photosynthesis transparency 11 Studying Plants Milliken 1986

Photosynthesis

TEC

Prentice Hall 9-1 Photosynthesis p.232

Resources
Photosynthesis Diagram

Hip, Hop, the Crop Plant Song

Day 9

Topic 8-5 What are flowers?

Objectives
Recognize the flower as the reproductive organ of a plant.
Identify the two special kinds of leaves in flowers.
Identify the parts of the reproductive parts of plants.

State Goals

Classwork-Homework
Vocabulary
Sepal: special kind of leaf that protects the flower bud
Petal: white or brightly colored structure above the sepal of a flower
Pistil: female reproductive organ in a flower
Stamen: male reproductive organ in a flower
Perfect Flower: flower with both female and male reproductive organs
Imperfect Flower: flower with either male or female reproductive organs, but not both

Globe Fearon 8-5 What are flowers? pp. 182-183
8-5 What are flowers? pp. 154-155

   Flowers transparency 9 Studying Plants Milliken 1986

   Flowers page 9a Studying Plants Milliken 1986
                     Use the diagram to complete the worksheet together.

Flowering Parts Coloring Article with questions and a coloring diagram

TEC

Prentice Hall 9-1 Angiosperms pp. 244-246

Resources

Day 10

Topic Flower Dissection

Objectives
Dissect a flower.
Learn flower parts.

State Goals

Classwork-Homework

Activity: Flower Power: Flower Dissection

TEC

Resources

Day 11

Topic 8-6 How do flowering plants reproduce?

Objectives
Define pollen.
Define fertilization.
Explain cross-pollination.

State Goals

Classwork-Homework
Vocabulary
Filament: stalk of the stamen
Anther: part of the stamen that produces pollen
Pollen Grain: male reproductive cell
Fertilization: joining of the nuclei of the male and female reproductive cells
Pollination: movement of pollen from a stamen to a pistil

Globe Fearon 8-6 How do flowering plants reproduce? pp.184-185
8-6 How do flowering plants reproduce? pp. 156-157

Pollination and Fertilization transparency 10 Studying Plants Milliken 1986

Pollination and Fertilization worksheet 10a Studying Plants Milliken 1986

Draw and identify parts of a plant

TEC

Prentice Hall 9-3 Flower Pollination p.246

Resources

Day 12

Topic 8-7 What are seeds and fruits?

Objectives
Identify the parts of the pistil.
Explain how seeds and fruits form.

State Goals

Classwork-Homework
Vocabulary
Stigma: top part of the pistil
Style: the stalk of the pistil of a flower
Ovary: bottom part of the pistil
Ovule: part of the ovary that develops into a seed after fertilization
Embryo: underdeveloped plant or animal
Fruit: a mature ovary and its seeds

Forming a Seed

1	Pollen grain lands on stigma.
2	Pollen cell grows a pollen tube.
3	Pollen tube grows down stigma, through the style and the ovary
4	Tip of tube enters the ovule, tube dissolves.
5	Pollen cell and reproductive cell of ovule join.
6	Fertilization occurs and the ovule develops into a seed.

Fruits

1	When seeds are forming, the ovary is growing.
2	Ovary becomes very large.
3	Ovary surrounds and protects the seeds and embryos inside the seeds.
4	Ovary and seeds is called the fruit.

  Globe Fearon 8-7 What are seeds and fruits? pp. 186-187
                                8-7 What are seeds and fruits? pp. 158-159

Angiosperm Test from The Intimate Side of Plants. Appendix M, Page 1
            or Label the Plants

   Classifying: Fruit or Vegetable Globe Fearon p.187 GF p. 158

TEC

Prentice Hall 9-2 Seeds pp.238-241

Resources
Plant Function Notes

Day 13

Topic 8-8 What are the parts of a seed?

Objectives
Identify monocots and dicots.
Identify the cotyledon.

State Goals

Classwork-Homework

   Seed Parts
             Seed Coat: outer covering that protects the embryo
                      Hilum: where seed was attached to the ovary
                      Cotyledon: store food
                      Embryo: tiny plant

Germinate: to grow from a seed into an embryo plant

  Globe Fearon 8-8 What are the parts of a seed? pp. 190-191
                                8-8 What are the parts of a seed? pp. 160-161

     Dissect a Seed Budding Botanist AIMS 1993 page 13-16

1	Soak seeds over night. Keep some dry ones for observation
2	Pass out Dissect a Seed Part 1 and a soaked and dry bean seed.
3	Draw the dry bean seed
4	Draw the soaked bean seed.
5	Remove the soaked bean seed coat and use the magnifying glass to draw what you see.
6	Split soaked bean seed in half.
7	Use the magnifying glass and draw what you see.
8	Pass out Dissect a Seed Part 2 and a soaked and dry corn seed.
9	Draw the dry corn seed.
10	Draw the soaked Corn Seed.
11	Remove the soaked corn seed coat and use the magnifying glass to draw what you see.
12	Split soaked bean seed in half.
13	Use the magnifying glass and draw what you see.

n. Write five observations for a Corn seed and five observations for a bean seed.

TEC

Prentice Hall 9-2 Seed Parts pp. 238-239

Resources

Day 14

Topic Seed Dispersal

Objectives
Identify the parts of a seed.
Infer how different seeds are dispersed.

State Goals

Classwork-Homework

   Seed Dispersal:
          wind
          animals
          water
                mechanical means.

Seeds dispersed by wind

1	Seeds are light and small, or smooth, e.g. petunia
2	Fruit may resemble a salt cellar with openings to release fine seeds, e.g. p
3	Seeds or fruits may have plumes to catch the wind, e.g. dandelion, milkweed.
4	Seeds may have a wing to increase the surface area, e.g. pine, tecoma.
5	The dry heads of flowers break off and roll over the veld releasing their seeds, e.g. brunsvigia.
6	The dry heads of flowers are on long stalks which blow in the wind and release seeds, e.g. agapanthus.
7	The whole plant dries, breaks off and tumbles over the veld releasing seed, e.g. tumbleweed.

Seeds dispersed by animals:

1	Some berries are eaten and not digested. The seeds are dispersed in the animals' droppings. black berries, privet berries, bug weed.
2	Flesh of stone fruits is eaten and the stone dropped, peaches, apricots.
3	Harvester ants collect and store seeds, fynbos
4	Sticky seeds like the mistletoe stick to the beaks of birds. Birds wipe the seeds from their beaks onto the bark of a tree where the seed then germinates.
5	Seeds or fruits cling to wool, feathers etc. of animals and clothing of man. They drop off later. burweed, devil's thorn, blackjack

Seeds dispersed by water:

1	Rainwater washes seeds from one place to another.
2	Streams, rivers may disperse seeds.
3	Coconuts are carried by the sea for hundreds of kilometers.

Seeds dispersed by mechanical devices

1	Some plants have pods which burst open and twist, flinging out the seeds legumes like the bean or pea, violet.

   Label: Sorghum, corn and wheat  Use Growing Kansas Crops p.16

   Label: Sunflower and Soybean Use Growing Kansas Crops p.17

   Seed Dispersal Worksheet

TEC

Resources

Day 15

Topic 8-9 How do plants reproduce asexually?

Objectives
Define vegetative propagation.
Identify ways plants reproduce asexually.

State Goals

Classwork-Homework

Vocabulary
Asexual Reproduction: reproduction needing only one parent
Vegetative Propagation: asexual reproduction that uses parts of plants to grow new plants
Tubers: underground stem; potato
Bulbs: underground stem covered with fleshy leaves; onions, daffodils, lilies, tulips
Cuttings: pieces of plant; asparagus, spider plant

Globe Fearon 8-9 How do plants reproduce asexually? pp.192-193
8-9 How do plants reproduce asexually? pp. 162-163

TEC

Globe Fearon 8-9 How do plants reproduce asexually? pp.192-193

Resources

Asexual Propogation of Plants

Day 16

Topic 8-10 What are tropisms?

Objectives
Identify plant responses to stimuli.

State Goals

Classwork-Homework
Vocabulary
Stimulus: change that causes a response
Tropism: a change in a plant's growth in response to a stimulus
Phototropism: plant's response to light
Gravitropism: plant's response to gravity
Hydrotropism: plant's response to water
Thigmotropism: plant's response to touch

  Carnivorous Plants
             Venus Fly Trap
                     Pitcher Plant
                     Sun Dew

  Globe Fearon 8-10 What are tropisms? pp. 194-195
                                8-10 What are tropisms? pp. 164-165

  Demonstration: Carrot top, radish top, potato in glass, plant cutting.

From the Ground Up

TEC

Prentice Hall 9-4 Tropisms pp. 248-249

Resources

Activities Investigations Art Resources Web Sites

APPLES

All About Apples Theme unit using apples.

ASEXUAL REPRODUCTION

Asexual Propogation of Plants

BRISTLE CONE PINE

Ancient Bristle cone Pine Earth's oldest living inhabitant "Methuselah" at 4,767 years, has lived more than a millennium longer than any other tree. Discover how these trees were found and where they live. Learn of their unique strategies for survival. Click on a link.

The Martyred One: The Oldest Living Thing on Earth Killed

CARNIVOROUS PLANTS

Specific Growing Instructions For Different Families Of Carnivorous Plants This growing guide has more specific growing instructions for each genus of carnivorous plants.

California Carnivores This nursery has over 400 varieties of insect-eating plants on display, with information signs to help provide a self-guided tour.

Carnivorous Plants Here you can learn about the ecology, cultivation, conservation, and taxonomy of carnivorous plants.

CONIFERS

Pine Life History Pine tree life history from the University of Connecticut.

Common Conifers of the Pacific Northwest Welcome to the tree identification Home Page at Oregon State University! The purpose of this site is to help you identify common conifers in the Pacific Northwest. Feel free to skip through the pages to learn more about specific genera, or to try your hand at identifying a tree specimen with a user-friendly dichotomous key. If you don't have a specimen handy, go to the mystery tree pages to try to identify the trees pictured.

DENDROCHRONOLOGY

Time & Cycles: Dendrochronology Use Paper Rings

Tree-Ring Dating In this study of dendrochronology, students will use activity sheets and a discussion to: apply principles of dendrochronology to determine a tree's age and to recognize climatic variation; analyze and experience how archaeologists can sometimes use tree rings to date archaeological evidence and study past climates. For the teacher, transparencies of the "Master Sequence," "The Stump," and "Be a Dendrochronologist" activity sheets.

Principles of Dendrochronology

Vikings: Build a Tree Ring Time Line

Dendrochronology View a Shockwave movie on cross dating. Click on Show Movie

Tree Ring Analysis Welcome to the laboratory of Dr. Douglas Fir.

FLOWERS

Flowering Parts Coloring Article with questions and a coloring diagram.

Families of Flowering Plants Names and pictures of flowering plants from the Botany Class

Flowers

FRUITS

Fruits & Seeds

KEYS

Black Rock Forest Identification Key

Deciduous Winter Key Trees of Michigan

Interactive Key of Iowa Trees

Tree Identification Key

Twig Key

What Tree Is It? Identify by Leaf, Fruit, or Name.

LEAVES

Investigation of Leaf Stomata Use fingernail polish and tape to view leaf stomata.

Leaf Collection Project Arkansas

Leaf Collection Project

Leaf Transpiration Determine the amount of water loss due the transpiration.

Leaf Forms, Shapes, and Margins

Leaf Identification I, Leaf Identification II, and Leaf Identification III This mini guide will help you identify particular trees by the shape of their leaves. All the leaves discussed are found on the North American continent.

Leaf Morphology Leaf unit

Leaf Terms

Types of Leaves and Types of Leaves II Different terms used to identify the different parts, shapes, margins, and styles of leaves.

Fall Color Finder Includes links to trees: Dogwood, Mountain Ash, Pignut Hickory, Redbud, Red Maple, Sassafras, Sourwood, Staghorn Sumac, Yellow Poplar.

How Leaves Change Color

MONOCOTS & DICOTS

Monocots vs. Dicots Drawings of the main characteristics of monocots and dicots.

PEANUT

A Short Peanut History History of the peanut.

PHOTOSYNTHESIS

Photosynthesis

Where Do Plants Get Their Food

PLANTS

Exploring Kansas Crops 6 units with lots of activities.

Grow Big, Strange, Nasty, Plants

Plant Life 2nd grade Unit Nice plant unit. Draw leaves. Angiosperm and gymnosperms. Flower & Tree Diagram

Plant Life 6th grade unit. Bryophytes, Tropism, & Mendel

Plant Parts We Eat

Seed and Stem Diagram

Teaching People Plant Collecting Learning the names of 15 desert plants.

Plant Collecting Data Information to include when collecting plants. Plant Collecting Data Form

Plant Identification Guide

Plant Printouts

Plants of Mount St. Helens

They Have Needs Too.

Plant Tissue

The Great Plant Escape Welcome to the Great Plant Escape! My name is Bud. My good friend Sprout and I are helping Detective LePlant on his search. You will find that plants are an important part of your life. We will need your help to find clues, do experiments, and solve problems as we journey into the world of plants. He promises lots of fun, but remember, we're here to solve a mystery! Good luck! We'll be with you all the way!

The Plant Kingdom The best web site for on-line learning and information.

REPRODUCTION

Carrot Tops Cut about half an inch off the end of the carrot that has the leaves. Cut the leaves off close to the base of the carrot. Put the carrots into the container with the cut side down.
Add enough water to cover about half the carrot top. Place the container in a well-lighted window. Observe the carrot tops each day for any changes. Remember the changes may start out small and change slowly. Look for new leaves and roots. Use a metric ruler to measure any growth you may observe. Continue your observations for six days and write your report on the sixth day. Make a chart to record any changes and measurements. Bring the carrot top and the chart to class.

Grass Seed Germination

Fertilization Teaching Unit

How a Corn Plant Develops

ROOTS

Roots

Root Records

Tap and Fibrous Root Picture

The Root Parts and functions of roots.

SEEDS

Seed Dispersal Worksheet

Germination Inhibitors

Seed Germination You will be investigating how different environmental conditions affect the germination of a seed.

Blowing in the Wind Seeds and fruits dispersed by the wind.

Wind Dispersal of Seeds Seeds and fruits dispersed by wind. Gliders, Parachutes, Helicopters (Whirlybirds) , Flutterer/Spinners, Cottony Seeds & Fruits,
UbiquitousTumbleweed, and Miscellaneous

STEMS

Stems

TESTS & QUIZZES

Plant Kingdom Quiz This puzzle is designed to check the your understanding of the plant kingdom.

Tree Quiz This puzzle is designed to check your knowledge and understanding of different kinds of trees and their properties.

TREES

Deciduous Trees Worksheet from Dendrology

Fall Tree Identification Activity See if you can identify these leaves.

Forestry Merit badge Requirements

Tree Detectives Identify trees by their leaves.

Tree Identification Cards

Totally Trees A scavenger hunt used by our 5th grade teachers to reinforce key terms during their annual tree project using the Living Tree Collection After the students have collected the specimens for each characteristic, dry the samples and use them to create a display. The display should include each specimen, characteristic displayed, and the name of the tree.

Common Iowa Trees: An Interactive Key Ready to get started identifying trees found in Iowa? This key is based on the use of only the leaves and branches, since they are the simplest parts of the tree to use for identification during the summer months when trees are in full foliage.

Introduction to Tree Identification

Trees Around School 18 pages Dendrochronology and keys

What Tree Is That?

Trees of the Pacific Northwest Welcome to the Tree Identification Home Page at Oregon State University! The purpose of this site is to help you identify common conifers in the Pacific Northwest. Feel free to skip through the pages to learn more about specific genera, or to try your hand at identifying a tree specimen with a user-friendly dichotomous key. If you don't have a specimen handy, go to the mystery tree pages to try to identify the trees pictured.

TWIGS

Twig Key

Winter Twigs

VEGETABLES

Plants & People: Vegetables Can you match the common names listed below with the vegetables displayed? Study the vegetables provided, paying special attention to their morphological structure, family, scientific name, and geographic origin.

WEB QUESTS

Identifying the Leaves of Pennsylvania Welcome to the forests of Pennsylvania. Look around and get comfortable. You will be here for a while. You are part of a team of four newly hired botanists for the Pennsylvania Department of Forestry. People have a lot of questions about leaves. Will you have the answers they seek?

Leaf Classification You are going to prepare an exhibit for the intergalactic museum demonstrating the various types of deciduous trees that were found in Maine in the year 2000.

Plants and Our Environment This web site is about plants. You will learn about how plants grow and the different parts of a plant. We will tell you how seeds travel and what bees do to help plants.

Extra Credit

"Be a Dendrochronologist" Compare two wooden beams from an American Southwest archaeological site. Print it out and answer the questions.

Ferns and Gymnosperms: Get the Big Picture and Seedless Vascular Plants Complete both worksheets about ferns.

Forests and Lumbering Around the World A large company has gained the rights to forest lands. They want to use clear cutting methods. You will research the use of forests in the United States and around the world. In the process, you will take on a role related to the issue as a logger, an environmentalist, a store owner in a town where logging is the main business, a forest ranger, or a paper or furniture company owner.

Help Wanted Different parts of plants do different jobs. Read the classified advertisements and help each of the plants parts listed below to find the right job.

Labeling Flowering Plant Diagram

Leaf Characteristics Worksheet Look at each of the leaf "questions" linked on this page. Find its "classification type" in the alphabetical list. Page of Leaf Pictures. Use Leaf Characteristics to help.

Leaf Collection Project Collect ten different leaves. Classify and identify each leaf. Make a rubbing or scan each leaf on paper. Create a leaf book

Monocot and Dicot Identification Printout the worksheet. Then click on each type of plant. Identify each of the pictures below as Monocot or Dicot and give the identifying characteristic used.

Scrambled Plants

Tree Core Reconstruction Dr. Jane Treemendous is a a Dendrochronologist. She just spent last month reading Alaska white spruce tree cores. You can guess how upset she was when she lost her core sample. Luckily, she still has the data. She has asked you to help her reconstruct a picture of the tree core from her data.

Three Tree Activities Complete all three tree activities for this extra credit project. Tree Leaf Identification, Tree Puzzle, and Tree Word Search

Tropism Quest Complete the activities and record your answers on the student worksheet.

What's Wrong With the Plants? Become a crop specialist and determine what is wrong with this tomato field. Answer the questions on a sheet of paper.