I have created a unit for home-schoolers. This is basic matter and chemistry information. Each part is a couple days to a week long worth of activities. Students can use this as a flipped classroom lesson.
These can be adapted from 4th-9th grade I would say since science depending on state will hit many of these terms for state testing. Adapt to fit your kiddos. Don't forget to come back to see the other parts to create a full unit!