This video explains what matter is and what are the three states of matter. It uses real world examples from a child’s point of view to explain what the three states of matter are, which objects that surround them are solids, liquids and gasses. It has nice quiz at the end as well.
This video satisfies the 2-PS1-4 requirement for second grade proficiency.
Students who demonstrate understanding can:
2-PS1-4. Construct an argument with evidence that some changes caused by heating or cooling can be reversed and some cannot.