dimarts, 3 de desembre de 2013

Density



A definition of density





Practiquem amb el simulador de densitat http://phet.colorado.edu/

Main Topics

Density
Mass
Volume

Sample Learning Goals

  • Describe how the concept of density relates to an object's mass and volume.
  • Explain how objects of similar mass can have differing volume, and how objects of similar volume can have differing mass.
  • Explain why changing an object's mass or volume does not affect its density (ie, understand density as an intensive property).
  • Measure the volume of an object by observing the amount of fluid it displaces.
  • Identify an unknown material by calculating its density and comparing to a table of known densities.

Density
Click to Run

Tips for Teachers
The teacher's guide (pdf) contains tips created by the PhET team.

Per saber-ne més sobre la densitat
http://encyclopedia.kids.net.au/page/de/Density

I ara un divertit experiment molt curiós que podeu realitzar a casa



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