Ball and Ring experiment

We held the ball using the handle over the bunsen burner first to see if the heat energy expand the ball when we put 

through the ring.There was a moment 

                        when the ball did caught fire.

  

When we heated the ball by itself it fit through the ring , then when we heated the ring it didn't really fit through but sort of did if we slightly pushed it through.You could see the colour changing when it was heated.

    When we heated the ball and ring you could not see the movement t
through the particles in them but if you used a magnifying glass you could see
 the movement through the particles starting to shake.