Wednesday, May 20, 2009

[Science Form 1] The Importance Of Water

One of the most importance resources that the earth gives us is water. All living things, including humans, animals and plants, need water in order to survive.

While water is important to all living beings, it plays a different role for plants and for humans and animals. Let us differentiate the functions of water in human beings, animals and plants.

All the statements below tell us about the importance of water.

Importance of water to plants:
  1. Water helps to support aquatic plants.
  2. The process of transpiration involves water.
  3. Water is needed for the germination of seeds.
  4. Water helps to transport synthesised food to all parts of plant.
  5. Water dissolves and transports mineral salts from the roots to the leaves.

Importance of water to human beings and animals:
  1. Water dissolves and transports digested food to all parts of the living thing.
  2. Water dilutes blood and enables it to transport oxygen efficiently.
  3. A person will die of dehydration if he loses 20% of water from his body.
  4. Water is important in excretion. It helps rid the body of unwanted substances.
  5. Water controls body temperature.
  6. Water keeps the lung moist for exchange of gases through respiration.
  7. Water supports and maintains the body shape of invertebrates.
  8. Water is needed in many household and daily activities.

Did you know?
  • 70% of the earth's surface is covered in water.
  • Our body is made up of 60% to 95% of water.

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