ScienceA04

Science A04: Water Cycle (Rain, River, Sea, Sky)

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Video and lesson ideas exploring the topic of the water cycle.

Product Description

Video and lesson ideas exploring the topic of the water cycle. Key concepts include:

  • Some of the world’s water dries up into water vapour which collects into clouds made up of tiny water droplets.
  • When the droplets become large enough they fall as rain.
  • Rain-water collects into streams, rivers, lakes, and some of it flows back into the oceans.
  • The ‘water cycle’ is a continuous process.
  • The effects of ‘evaporation’ (the process whereby water becomes vapour) can be observed by noticing how water, (eg. in puddles), dries up over a period of time.
  • Living things depend on the water-cycle for water supply.
  • Water drops can be shaped like a convex lens (one that is thicker in the middle) by putting the water into a holder and letting light pass through it.

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