John Wiley & Sons
Wiley: Physical Geography: Animation: Types of Dunes
A graphic compares different types of dunes in terms of the presence of three parameters: wind, sand, and vegetation. Clicking an example reveals a photo and a sentence about the dune formation.
Sophia Learning
Sophia: Complements
To identify the different types of complements (subject, object, verb). To show the different ways in which they complete ideas.