Mark has a bow and arrow. Mark pulls back the string on the bow. When he lets go, the string and the bow go back to their original shape. What happens to the arrow?

Studying forces in science you will have learned about elasticity, or stretchiness. You already know about springs and rubber bands. If you don’t stretch them too far, they will bounce back into shape. This is very useful. Rubber bands, springs and other elastic things have lots of uses. They can hold things together. They can make things bounce. They can make things more comfortable. How much do you know about what stretchy things can do?