This website gives a short written explanation and plenty of practice for common prefixes. There is also a video on prefixes and other interactive activities for suffixes and more.
This website has a fun short video and an interactive practice activity to teach and assess common suffixes. It is geared toward adults but would be appropriate for secondary as well.
Water is all around us in one form or another. When you cool yourself off on a hot and humid afternoon with a tall glass of water loaded with ice, you’ve got the three states, or phases of water right there—liquid, solid, and gas.
In this lesson you will:
Identify the three states, or phases, of matter: solid, liquid, and gas
Explore how water changes from one phase to another
Examine arrangement and movement of water molecules in each phase of matter