Which materials stretch? Is it easier to change soft or hard materials? Whathappens when we try to bend brittle objects? Read <strong>Changing Shape</strong> to... » 

Which materials stretch? Is it easier to change soft or hard materials? Whathappens when we try to bend brittle objects? Read Changing Shape to learnabout the different ways we can change a material by stretching squeezingbending and twisting it. Find out why it is easier to change the shape of somematerials than others and explore why some materials keep a new shape andothers change back. «