The education department of Prince Edward Island has a great page with information pertaining to landforms. Starting with a definition, it then moves to the specific types like valleys, mountains, plateaus, etc.

Lesson plan with subsequent pages to use with the instructional activity. Images with landform word match up and additional work on earth modeling.

This site describes loess in pretty good detail, also adding visual with two pictures. Great source for understanding how loess occurs and where it is found.