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Plants Protect Themselves Fm Extreme Weather

Date post: 07-Apr-2015
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science yr 4
14
2 types of weather A. Hot/dry B. Strong winds Plants Protect Themselves from Extreme Weather
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Page 1: Plants Protect Themselves Fm Extreme Weather

2 types of weatherA. Hot/dry

B. Strong winds

Plants Protect Themselves

from Extreme Weather

Page 2: Plants Protect Themselves Fm 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

Page 3: Plants Protect Themselves Fm Extreme Weather

1.Needle-shaped leaves

To prevent excessive loss of water Example of plants:

Cacti

Page 4: Plants Protect Themselves Fm Extreme Weather

2.Thick stems

Use to store water Example of plants

Cacti

Page 5: Plants Protect Themselves Fm Extreme Weather

3.Long roots

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

Page 6: Plants Protect Themselves Fm Extreme Weather

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

Maple tree, Rubber tree

Page 7: Plants Protect Themselves Fm Extreme Weather

5.Waxy and waterproof leaves

Use to reduce the loss of water Example of plants

Mesquite tree, Yam plant, banana tree, pandan

Page 8: Plants Protect Themselves Fm Extreme Weather

6.Leaves with fine hair

Use to reduce the loss of water Example of plants

pumpkin plant, watermelon plant

Page 9: Plants Protect Themselves Fm Extreme Weather

7.Leaves which curl up during sunny

Use to reduce the loss of water Example of plants

banana tree, maize plant, lalang

Page 10: Plants Protect Themselves Fm Extreme Weather

B.STRONG WIND AREA

Specific characteristics for plants to survive:

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

Page 11: Plants Protect Themselves Fm Extreme Weather

1.Buttress roots

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

mangrove tree, coconut tree, rubber tree

Page 12: Plants Protect Themselves Fm Extreme Weather

2.Long and divided leaves

To prevent the plant from being damaged by strong winds

Example of plants:Coconut tree, betel nut palm

Page 13: Plants Protect Themselves Fm Extreme Weather

3.Stems that bend easily

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

Coconut tree, bamboo plant

Page 14: Plants Protect Themselves Fm Extreme Weather

4.Needle-shaped leaves

Allow a strong wind to pass through between the leaves.

Example of plants:Pine tree, casuarina tree


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