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|related resources= | |related resources= | ||
*[[http://orbit.educ.cam.ac.uk/wiki/Floating_and_sinking| What floats and what sinks?]] | *[[http://orbit.educ.cam.ac.uk/wiki/Floating_and_sinking| What floats and what sinks?]] | ||
* | *[[http://orbit.educ.cam.ac.uk/wiki/The_Elephant_on_the_Bridge| The Elephant on the Bridge]] | ||
*[[http://orbit.educ.cam.ac.uk/wiki/Bridges| Building bridges from a piece of A4 paper]] | *[[http://orbit.educ.cam.ac.uk/wiki/Bridges| Building bridges from a piece of A4 paper]] | ||
*[[http://orbit.educ.cam.ac.uk/wiki/Which_material_makes_a_good_parachute| Which material makes a good parachute?]] | *[[http://orbit.educ.cam.ac.uk/wiki/Which_material_makes_a_good_parachute| Which material makes a good parachute?]] | ||