Brain Pop Science Education for the Early Grades › Forums › Volume One › Learning Progression “A”: Nature of Matter › Lesson A-2. Solids, Liquids, and Gases and Change with Temperature › Brain Pop Tagged: States of Matter This topic has 0 replies, 1 voice, and was last updated 2 years, 6 months ago by coloradomomof5. Viewing 0 reply threads Author Posts November 15, 2017 at 1:29 pm #4298 coloradomomof5Participant I found a states of matter and changing states of matter videos on Brain Pop. You might need a subscription for them. They are on the older site. Author Posts Viewing 0 reply threads You must be logged in to reply to this topic.