My science library, 3-4
Author
Author
Language
English
Description
This book explains what an ecosystem is and how the plants and animals within an ecosystem rely on and affect the ecosystem's existence. Different types of ecosystems are described, as well as the food webs within them. Through its presentation of how some changes to an ecosystem can be good while others are harmful, students discover the important role they can play in keeping ecosystems alive and well.
4)
Mix it up! solution or mixture?
Author
Author
Language
English
Description
Force and motion are introduced in this book, which features vivid photographs that make the content easy to understand. Examples that students can relate to in their everyday lives are provided throughout the text. A "Show What You Know" section in the back of the book presents three questions to reinforce content understanding.
Author
Language
English
Description
The life cycle of a plant is explained as well as how different plants use different ways to reproduce, how the different parts of a plant play a role in how it receives the nutrients it needs to survive, how plants are pollinated, and how more plant species are being discovered every day.
Author
Language
English
Description
This book explains how humans and animals have skeletons to support the inner workings of their bodies. Students learn about the differences between endoskeletons and exoskeletons, as well as view examples of animals that have one type of skeleton or the other. Detailed information on these animals includes their habitats, eating habits, and ways they adapt to survive. A special section called "Explore Your World" outlines an experiment for examining...
12)
Studying our Earth, inside and out
Author