This website has super cool videos about the three states of matter and their changes. It also has really neat interactive games, quizzes, and more to test how well you listened.
This website is full of information on the states of matter as well as changes that can occur. This site includes diagrams that will help you understand more about matter.
This is an interactive website that allows you to drag and drop labels in to the correct pictures. The states of matter as well as their changes is reviewed.