Whittaker, Helen.

How toys roll / Helen Whittaker. - South Yarra, Vic. : Macmillan Library, 2011. - 32 p. : col. ill. ; 21 cm. - Toys and forces .

Includes index.

Explains how pushing and pulling forces make rolling toys work.

For primary school age.

ISBN: 9781420284096 (lib. bdg.)

Source: Windfall Canada

Subjects--Topical Terms:
Motion
Toys

Dewey Class. No.: 531.3