P3 Plants
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Transcript of P3 Plants
My Pals are Here! Science © 2008 Marshall Cavendish (Singapore) Private Limited
Learning Objectives
1. I can classify plants based on similarities and differences of common observable characteristics.
2. I can identify the parts of a plant.
Questions to think about…
What are the characteristics
of plants?
How are plants classified?
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Similar, yet different• Plants can be
similar or different in:o what their plant
parts look likeo whether they
produce flowers
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What parts do plants have?
• Most plants have these parts:
3
4
2
5
6
1
What parts do plants have?
• Rootso To anchor the plant to the ground o To absorb water and nutrients
Rootso Usually found under
the groundo Roots above the
ground
(Mangrove trees)o Hanging roots
(Banyan tree)
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Mangrove trees have roots above the mud.
Hanging roots
http://www.ehow.com/facts_5966616_plants-roots-able-absorb-water_.html
Roots
Root vegetables store food.
What parts do plants have?• Stems
o Supports the branches and leaves
o Commonly found above the ground
o Carries food, water and mineral salts to all parts of the plant.
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1. Strong stem1. Strong stem
(can stand (can stand upright)upright)
Stems
2. Weak stem2. Weak stem
o Creeperso Use walls/ fences/
other plants for support
Is the potato a root or a stem?
It is a stem!(Stem tuber)
Stores food for the plant.
Time to think…
Q: Plants are non-living things as they do not need to eat.
T/F?
False!
A: Plants make their own food to produce energy to survive.
What parts do plants have?• Leaves
o Classify according to sizes, shapes, colours, vein patterns and edges.
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o Contains chlorophyllo Make food for the
plant
Leaves - Shape
2. Oval2. Oval
1. Heart
3. Round3. Round
4. Palm
Leaves - Edges
1. Entire1. Entire
2. Jagged/Toothed(saw/sharp)
3. Lobed(rounded)
Leaves – Vein Pattern
2. Net-like
1. Parallel
Time to think…
Q: All plants have flowers.
T/F?
False!
A: There are non-flowering plants, such as ferns and mosses.
What parts do plants have?• Flowers
o Often the most beautiful part of a plant
o Admired for their shapes and colours
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Time to think…
Q: All plants have fruits.
T/F?
False!
A: Only flowering plants produce fruits from flowers.
What parts do plants have?
• Fruitso Fruits come in
many different sizes, shapes and colours.
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Fruit - Seeds2. Many seeds1. One seed
avocado
rambutan
mango
watermelon
dragonfruitdragonfruit
papaya
Fruit – Skin/ Outer Covering/ Texture
2. Hairy1. Smoothrambutan
mango
watermelon
kiwi
How can plants be classified?
There is a great diversity of plants
around us. Can you think of some ways to classify plants?
How are plants classified?
• Plants that produce flowers. (reproduce from seeds)
e.g. orchid plant
• Plants that do not produce flowers. (reproduce from spores)
e.g. ferns, mosses, algae
Flowering
Plants
Non-flowering
• Grow on soil
e.g. grass
How are plants classified?
• Submerged (under water)
e.g. hydrilla
• Floating (above water)
e.g. water lily
Live on land
Plants
Live in water
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Water plants
My Pals are Here! Science © 2008 Marshall Cavendish (Singapore) Private Limited
My Pals are Here! Science © 2008 Marshall Cavendish (Singapore) Private Limited