Why does my heart pumpt? : and other bodyworks questions /
Helen Bethune.
- Markham, Ont. : Scholastic, 2007.
- 16 p. : col. ill. ;23 cm.
- Why is it so? Pan Canadian Science Place .
9780779174218 (pbk.) 0779174216 (pbk.)
Human body--Miscellanea. Science--Study and teaching (Primary)