Robert E Wells
Author
Series
AV2 fiction readalong volume 45
Accelerated Reader
IL: LG - BL: 3.7 - AR Pts: 1
Description
Provides a simple introduction to the use of levers, pulleys, and wheels to move heavy objects.
Author
Pub. Date
2003
Accelerated Reader
IL: LG - BL: 4.3 - AR Pts: 1
Description
Illustrates the concept of big, bigger, and biggest by comparing the physical measurements of such large things as a blue whale, a mountain, a star, and the universe.
Ilustra el concepto de grande, más grande, más grande y mediante la comparación de las mediciones físicas de tales cosas grandes como la ballena azul, una montaña, una estrella, y el universo.