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The human heart and how it works

http://www.youtube.com/watch?v=oHMmtqKgs50

The video above describes how it is that the Human Heart functions.

Last modified onThursday, 23 July 2015 15:55
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sciencespot

Primary Science

'Science Around Us' is a series of six pupil’s books with corresponding teachers’ manuals. Please note that these text books are NOT TO BE SOLD