This powerpoint presentation doubles as vocabulary posters that can be printed up for your science word wall. I decided to create it as an excellent background for myself first, then as a presentation tool for my students as well. I've found that in the past it has not been as effective to post vocabulary words on the word wall without illustrations to go along with them. My district is involved in VIPS and the lessons are based on a FOSS program. I hope you find this product useful.