Hard or SoftBook - 2009
How can we tell if something is hard or soft? In 'Hard or Soft,' children learn whether it is easy to change the shape of hard or soft materials, how we can tell if something is hard or soft, and which materials have these properties.
Publisher: Chicago, Ill. : Heinemann Library, c2009
Characteristics: 24 p. :,col. ill. ;,18 x 21 cm.