March 2016

Experiment: to show changes in shape and volume of iodine crystals when they are heated

By |2017-01-17T11:14:58+02:00March 2nd, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

sublimation_of_iodine-min

ZIMSEC O Level Combined Science Notes: An  experiment To show changes in shape and volume of iodine crystals when they are heated

Materials: evaporation dish/tin lid, glass filter funnel, burner, burner stand, one iodine crystal

Method

  1. Place the iodine crystal into an evaporation dish
  2. Put the filter funnel upside down over the crystal
  3. Warm the crystals […]

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Experiment: to show that solids change shape when they melt

By |2017-01-17T11:14:59+02:00March 2nd, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

Melting wax takes up the shape of the container. Image credit about.com

Melting wax takes up the shape of the container. Image credit about.com ZIMSEC O Level Combined Science Notes: An  experiment to show that solids change shape when they melt

Materials: tin lid/evapouration dish, burner, burner stand, candle wax

Method

  1. place […]

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The relationship between volume and state

By |2017-01-17T11:15:02+02:00March 2nd, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

The three states of matter and volume. Image credit ucdavis.edu

The three states of matter and volume. Image credit ucdavis.edu ZIMSEC O Level Combined Science Notes: The relationship between volume and state

Solids

  • due to the fact that the particles in a solid are in fixed positions
  • solids have a fixed […]

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The states of matter

By |2017-01-17T11:15:06+02:00March 1st, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

States of matter. Image credit britannica.com

States of matter. Image credit britannica.com ZIMSEC O Level Combined Science Notes: The states of matter
  • Matter exists in three forms:
  1. gas
  2. liquid
  3. solid
  • NB There is a fourth state of matter: plasma but it is beyond the scope of the ordinary level syllabus
  • Indeed there are other states but […]

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