Opis
Readers learn how this simple machine makes it easier to move things to different levels. They learn how flatter slopes use less effort than steeper slopes. By the end of the book, readers know the difference between complex and simple machines and how inclined planes are used in everyday life to make lifting and lowering objects easier.
Szczegóły książki
Format
Kindle
Strony
24 stron
Język
Angielski
Opublikowany
Jan 1, 2014
Wydawca
The Child's World
Wydania
2 editions
ISBN-10
1631431293
ISBN-13
9781631431296