Audio
Kay Manolis

Levers

Listen in app
Levers are simple machines that make work easier. There are three different classes of levers. Students will learn what levers are, how the classes of levers differ, and how the construction of levers makes work easier.
0:06:00
Copyright owner
Bellwether Media

Impressions

    How did you like the book?

    Sign in or Register
fb2epub
Drag & drop your files (not more than 5 at once)