February 2016

Investigating water loss in plants

By |2017-01-17T11:15:45+02:00February 5th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

Transpiration occurs mainly through the leaves. Image credit desk7.net

Transpiration occurs mainly through the leaves. Image credit desk7.net ZIMSEC O Level Combined Science Notes: Investigating water loss in plants

Aim: To determine how plants loose their water

Materials: plants or branches from plants, weighing balance, containers, water, oil/Vaseline.

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January 2016

Factors affecting rate of transpiration

By |2017-01-17T11:16:06+02:00January 24th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

The rate of transpiration is influenced by any number of things. Image credit wordpress.com

The rate of transpiration is influenced by any number of things. Image credit wordpress.com ZIMSEC O Level Combined Science Notes:Factors affecting rate of transpiration
  • The rate of transpiration varies from plant to plant and day to day.
  • Environmental […]

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Transpiration in plants

By |2017-01-17T11:16:07+02:00January 24th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

Demostrating transpiration. Image credit masterwoodsman.com

Demostrating transpiration. Image credit masterwoodsman.com ZIMSEC O Level Combined Science Notes:Transpiration in plants
  • Water enters plant roots at all hours of the day.
  • Some trees absorb as much as 5 litres of water per minute.
  • Over 95% of the water that enters a plant through the roots exits […]

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