In Lesson 5, students mix a liquid--water--with three different solids--gravel, toilet tissue, and salt--and observe and compare the changes that result.
(students; mix; a liquid; with three different solids; L:In Lesson 5) (students; observe; L:In Lesson 5) (students; compare; the changes)
students students students
mix observe compare
a liquid with three different solids L:In Lesson 5
L:In Lesson 5
the changes