How Do You Lift a Lion?
Wells of Knowledge Science
فرمت کتاب
ebook
تاریخ انتشار
2014
Reading Level
2
ATOS
3.7
Interest Level
K-3(LG)
نویسنده
Robert E Wellsشابک
9781497699526
کتاب های مرتبط
- اطلاعات
- نقد و بررسی
- دیدگاه کاربران
نقد و بررسی
January 1, 1997
Gr 2-4-A basic introduction to levers, wheels, and pulleys. As two children lift a lion, pull a panda, and deliver a basket of bananas to a baboon party, Wells offers explanations for how and why these simple machines work. The hand-lettered text identifies technical terms such as fulcrum, force, friction, and other such words (also included in a glossary). One might quibble with some of the statements, such as "Leverage adds force to your own strength." Also the pen-and-acrylic cartoons are mediocre in quality and are merely adequate at depicting the concepts. A great idea with a fair-to-middlin execution.-Virginia Opocensky, formerly at Lincoln City Libraries, NE
دیدگاه کاربران