検索キーワード： 著者 "Lisa Amstutz" すべてのカテゴリー

A bowling ball is heavy. A feather is light. Why are some items heavy and others light? Find out in this series about materials and their properties. Informative, at-level text helps listeners understand the differences between heavy and light materials.

A nail is hard. A cotton ball is soft. Why are some objects hard and others soft? Find out in this series about materials and their properties. Informative, at-level text helps listeners understand the differences between hard and soft materials.

Give beginning listeners all the need-to-know information about hills, including their characteristics, how they form, and where they can be found around the world.

All canyons are deep, steep valleys, but there is more to these landforms than meets the eye! Rivers form some canyons, while the movement of Earth's crust forms others. To get to the bottom of the Grand Canyon in Arizona, you'd have to travel more than a mile!

Look up! All mountains rise high into the sky, but there is more to these landforms than meets the eye! Some form when two pieces of Earth's crust push up land. Erupting volcanoes form others. Some are growing, while others are shrinking. Give beginning listeners all the need-to-know information about mountains, including their characteristics, how they form, and where they can be found around the world.