Books with title How Are Caves Formed?

Theyre sparkly with varied hues. You might see them in a beautiful necklace, a breathtaking ring, or even in a computer. Theyre gems. Gems are some of Earths most precious resources, and some of them are millions, or even billions, of years in the making. This detailed text, accompanied by colorful photographs, informs readers about the remarkable processes that take place under the surface of Earth to form different kinds of gems. Theyll also learn how some gems are mined, while others are replicated in laboratories. Future lapidaries will also find out how they might find and polish gems for themselves.

The Grand Canyon in Arizona is an amazing natural feature. It is so majestic and immense, yet it was carved simply: by water. Kids will be amazed to learn that, given enough time and enough flow, water can carve deeply into the Earth. This book will look at how water erodes stone, and how different stones wear away at different rates. The results are some of natures most beautiful landforms.

Theyre sparkly with varied hues. You might see them in a beautiful necklace, a breathtaking ring, or even in a computer. Theyre gems. Gems are some of Earths most precious resources, and some of them are millions, or even billions, of years in the making. This detailed text, accompanied by colorful photographs, informs readers about the remarkable processes that take place under the surface of Earth to form different kinds of gems. Theyll also learn how some gems are mined, while others are replicated in laboratories. Future lapidaries will also find out how they might find and polish gems for themselves.

The Grand Canyon in Arizona is an amazing natural feature. It is so majestic and immense, yet it was carved simply: by water. Kids will be amazed to learn that, given enough time and enough flow, water can carve deeply into the Earth. This book will look at how water erodes stone, and how different stones wear away at different rates. The results are some of natures most beautiful landforms.

About 20,000 years ago, much of North America was covered by glaciers. As the glaciers receded, they scoured the landscape, leaving behind basins that filled with freshwater. Kids will learn about glaciation and how the basins filled. Theyll be surprised to learn the Great Lakes, which were carved by glaciers, hold about twenty percent of the worlds freshwater!