Investigating Changing Materials

Last week we investigated the difference between solids, liquids and gasses.  We did this by filling a balloon with water to represent ‘liquid’.  When the balloon was filled with liquid it felt squashy and you could poke it and it would bounce back.  It was quite tricky filling the balloons with water!

Then we filled balloons with 'gas'!  We blew them up and filled them with carbon dioxide.  When the balloon was filled with gas it was only a little bit squashy and you had to be careful not to burst it as the skin of the balloon was quite tight as the particles are trying to escape!

To see a solid in a balloon Miss Shearer had filled some with water and put them in the freezer so they were filled with ice.  These balloons were very interesting!  They were very hard and you could only move them by picking them up. 

It was good to see the comparisons between solids, liquids and gasses in the balloons and it gave us a good understanding of what they are like.  We have left the balloons as they are and are going to observe the changes which take place over the next few weeks.

Liquid and Gas filled balloons.

 

 

 



Solid Balloons