p3 plants

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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