Plants Protect Themselves Fm Extreme Weather

Post on 07-Apr-2015

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science yr 4

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2 types of weatherA. Hot/dry

B. Strong winds

Plants Protect Themselves

from Extreme Weather

A.HOT AND DRY REGION

Specific Characteristics for plants to survive:

1. Needle-shaped leaves2. Thick Stems3. Long roots 4. Loses it leaves5. Waxy and waterproof leaves6. Leaves with fine hairs7. Leaves which curld up during sunny

1.Needle-shaped leaves

To prevent excessive loss of water Example of plants:

Cacti

2.Thick stems

Use to store water Example of plants

Cacti

3.Long roots

Long roots to grow deep into the undergroundto get waterExample of plants:Cacti

4.Loses it leaves during dry season Use to reduce the loss of water Example of plants:

Maple tree, Rubber tree

5.Waxy and waterproof leaves

Use to reduce the loss of water Example of plants

Mesquite tree, Yam plant, banana tree, pandan

6.Leaves with fine hair

Use to reduce the loss of water Example of plants

pumpkin plant, watermelon plant

7.Leaves which curl up during sunny

Use to reduce the loss of water Example of plants

banana tree, maize plant, lalang

B.STRONG WIND AREA

Specific characteristics for plants to survive:

1. Buttress roots2. Long and divided leaves3. Stem that bend easily4. Needle-shaped leaves

1.Buttress roots

Roots grow at the base of the stem Example of plants:

mangrove tree, coconut tree, rubber tree

2.Long and divided leaves

To prevent the plant from being damaged by strong winds

Example of plants:Coconut tree, betel nut palm

3.Stems that bend easily

To prevent the plants from being broken easily Example of plants:

Coconut tree, bamboo plant

4.Needle-shaped leaves

Allow a strong wind to pass through between the leaves.

Example of plants:Pine tree, casuarina tree