Matter and its changes

In sixth grade we are learning now the matter and how it changes. 

We are going to do a small investigation watching a video and reading some pages on internet. 

That is the video;

 And these are the links; 

https://www.thoughtco.com/physical-and-chemical-changes-examples-608338

http://eschooltoday.com/science/states-and-behaviour-of-matter/what-is-matter.html