Answers

2016-07-21T19:15:51+08:00
The blocks are pushed up to the middle of the boiling water andthen swayed towards the sides of the beaker.
The small, light wood blocks resemble the lithospheric/tectonic plates that moved about slowly along the tectonic boundaries, pushing, sliding past and drifting away from each other because of convection current.
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2016-07-26T22:46:22+08:00
The blocks are pushed ip to the middle of the boiling water and then swayed towards the sides of the beaker.
the block resemble is the listospheric/tectonic plate
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