NEW STANDARDS 6th grade Plants1: classification & processes
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Transcript of NEW STANDARDS 6th grade Plants1: classification & processes
Classification & Processes
1
PLANTS:How are plants divided up?
How are they related?
How are they different?
Nomenclature: (naming of species)
PLANTS
Nonvascular Vascular
Mosses
Lichens
NOT A PLANT:Fungi/ lichen mushrooms
SEEDSNO-SEEDS
Angiosperms
Gymnosperms
Monocots
Dicots
Conifers
NO-SEEDS
Ferns
Horsetails
I. Nonvascular plants (“lacking vessels”), short & delicate
A. NOT PLANTS: 1) lichens: grow on tree; looks like scales/shells
2) fungi/mushrooms: grow on the ground
B. Mosses
1. cling to damp soil, rocks, shady trees
2. are tiny plants (1-2 inches tall)
3. leaves are only 1-2 cells thick
4. anchored with rhizoids (hair-like fibers)-not roots.
5. seedless; grow from spores
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ADVANCE
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II. Vascular: “having vessels” to carry water/minerals up & down the plant
divided into Seedless & seeds
SEEDLESS SEEDS
Vascular
REMINDER: Mark plant classification chart
SEEDLESS: do not have seeds; use spores to reproduce, grow tall & thick
EXAMPLE: fern VIDEO (1 min)
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REMINDER: Mark plant classification chart
SEEDS:
GYMNOSPERMS ANGIOSPERMS
1. Gymnosperms (naked seed); no flowers; oldest kind of seed plants,
they like cold/dry climates,
use sexual reproduction,-needs something to spread the
pollen (male part) to the egg (female part) for a seed to be made… WIND
produce seeds on female cones
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REMINDER: Mark plant classification chartHSW Video: Gymnosperms 1 min)
Coniferht
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Cycad
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2. Angiosperms (flowering) produce flowers, form the largest division in plant kingdom; live lots of places/climates
•Use sexual reproduction/ pollination- needs something to spread pollen to
egg… INSECTS
•form seeds inside their fruits
VIDEO: HSW Angiosperms 1 min
VIDEO: HSW Plant reproduction 1 min
•trick insects into pollinating them by having colorful, fragrant flowers & sweet nectar
•trick animals into transporting and ‘planting’ seed by making a yummy fruit for the animal to ingest & later pass as waste
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Angiosperms
MONOCOTS DICOTS
•Examples: fruits, vegetables, grains, most nuts
•Have a seed leaf or COTYLEDONS (2 kinds)
Cotyledon: first leaves
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COTYLEDONS:
1.Monocots have one cotyledon, (corn, rice, wheat, grasses)
2.Dicots have 2 cotyledons (bean plant, roses, cacti)
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Plant Parts:What are the parts of a plant?
What are their jobs?
What parts do you know? What do they do for the plant?
Parts of a plant: What are they for?
1.Seeds
2.Roots
3.Stem
4.Leaves
5.Flowers
•Makes more of the plant (babies)
•Takes in water, anchors it, stops erosion
•Holds up plant, water up & down
•Makes food for the plant, breathes
•Attracts a pollinator to make a seed
Plant Life cycle
What do plants need to survive?
water
Air
(carbon dioxide)Soil
(minerals)
sunlight
LAB:
Students design an experiment to test for needs of a plant:Choose a variable-
Sunlight
Water
Soil
Air
Important processes:
1.Germination process by which a seed sprouts
2.Pollination process of spreading pollen to fertilize a flower’s egg to make a seed
3.Transpiration leaves releasing water into the air
4.Respiration leaves releasing oxygen
5.Photosynthesis plants turn sunlight into food
PLANT PARTS:
Seeds LINK (Seamon ppt)
Roots LINK (Seamon ppt)
Leaves LINK (Seamon ppt)
Stem LINK (Seamon ppt)
Flowers LINK (Seamon ppt)
Biodiversity Video Biology: Plants (17 min)
PLANTS video United Streaming VIDEO (20 min)
PLANTS video united Streaming: plants and humans ( 15 min)
The Ecotree LINK
The Wild Classroom LINK
PLANT LABS:1. Leaves: Identify & graph your collection into journal; view & draw fern spores;
Answer questions in Plant Journal.
2. Flowers: identify & draw 5 local spring flowers on white paper. Glue into journal.Roots: identify fibrous & taproots; draw 7 label root parts in journal; Answer questions in Plant Journal.
3. Seeds: seed dissection: label 3 parts of the seed into journal; observe pine nuts in pinecones-- sketch into journal; Answer questions in Plant Journal.
4. Stems: Compare three different types of bark. Notice the color & texture. How do the grains run? Is there a pattern? Create a bark rubbing with a dark crayon (rubbed sideways). Sketch the three specimens.
Header:
LAB: LEAVESRULES: BE GENTLE WITH THE LEAVES. They are fragile!
• What kinds of leaves are in your envelope? ___________, ______________, _______________, _______________, ______________
• Write how many of each kinds of leaves on the lines above.
• Sketch one of the leaves, labeling the blade, veins, midriff, & petiole
• What are the three processes performed by the leaves for the plant. _______________, ______________, _______________
• What is the difference between a simple leaf and a compound leaf? _____________________________________________________________
Header:
Leaf Bank: oak, maple, dogwood, elm, beech, redbud, sweetgum
LAB: SEEDSRULES: BE CAREFUL DISSECTING THE SEEDS.
• What is the purpose of a seed? ______________________________________
• What is the process of a seed sprouting into a young plant? ________________
• How do seeds travel? _____________________________________________
• What is the difference between a monocot & a dicot? ___________________________________________________________________________________________________________________________________
• Sketch the following parts of your dissected lima bean seeds: (seed coat, cotyledon, small embryo)
• Name 5 seeds that we eat. __________________________________________________________________________________________________
Header:
LAB: ROOTSRULES: BE GENTLE WITH THE ROOTS. They are wilting!
• What is the purpose of a root for a plant? ____________________, __________________________________
• What part of the root that carries water up the plant? _____________
• What part of the root carries water & nutrients down the plant? _____________
• Sketch & label the roots you have in your station into your journal. (root hairs, rootcap, fibrous root, taproot)
• What is the difference between a fibrous root and a taproot? _______________________________________________________________________________________________________
• Name some roots that we eat. _________________________________________________________________________
Header:
LAB: STEMRULES: BE GENTLE WITH THE BARK SPECIMENS.
• What is the purpose of a stem for a plant? ______________________________
• Compare three different types of bark. Notice the color & texture. How do the grains run? Is there a pattern? Sketch the three specimens.
• What is a vine?___________________________________
• What is a runner? __________________________________
Header:
FLOWER DissectionDissect your flower, sketch and label the following parts.
Male parts BLUE
Stamen
Anther
pollen
Female parts RED
Pistil
Stigma
Ovary: Egg
OTHER:
Sepals Petals
FLOWER DissectionDissect your flower, sketch and label the following parts.
Male parts BLUE
Stamen
Anther
pollen
Female parts RED
Pistil
Stigma
Ovary: Egg
OTHER:
Sepals Petals