365 enigmas y juegos de lógica

Defines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

What would happen if the Moon disappeared? We would try every possible way to get it back. As in everyday life, this book shows us that the answers to our problems are sometimes so close we just can't see them.

¿Por qué Covid asusta al mundo? La historia se cuenta desde el punto de vista de Covid. ¿De dónde venía Covid? ¿Por qué Covid se puso tan agresivo? ¿Por qué infectó a la gente? ¿Cómo llegó a Alemania? ¿Cómo podemos protegernos?

Learn multiplication and STEM topics on a trip to fascinating locations around the world! This Spanish book combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. Students will learn multiplication while engaged in reading about two fun-filled trips to China and Oahu. The full-color images, math graphs and charts, and practice problems make learning math and STEM concepts easy and fun. The table of contents, glossary, and index will further understanding of math and reading concepts. The Math Talk problems...