This reference book provides facts on gemstones. It is part of the "DK Pockets" series which covers subjects from natural history to architecture in a clear and logical way.
This fascinating history of the earth takes readers on a scientific adventure through time and across the globe--all by following the trail of a single pebble over millions of years. With its lively text, colorful illustrations and helpful timeline, The Pebble in My Pocket provides a revelatory account of the planet's dramatic formation, and ...
A collection of hands-on experiments and activities using rocks and minerals. Topics discussed include: the Earth's crust and core; geological time scale; make your own clinometer; taking samples; collecting fossils; classifying, arranging and displaying samples; and looking at crystals.
A reference book providing views of the universe, cutaways of the Earth, information exploring how it has evolved and what causes dramatic natural phenomena. It also covers core subjects such as rocks and minerals, weather and climate as well modern concerns about the environment.
The package provides a fact-filled handbook written by a geologist, an excavation tool, gem tray, and instructions for excavating and identifying gems and minerals. Photos and illustrations throughout.
-- Highly illustrated first reference books -- Topics arranged thematically provide in-depth explanations using simple language -- Contains lots of practical experiments -- World of Knowledge Encyclopedia includes Geography, Living World and Science Encyclopedias with fully integrated reference sections and index -- World of Knowledge Encyclopedia ...
Miles of maps, suggestions for wild adventures and fun activities, and fascinating facts from around the world help readers gain new insights into time zones, the names of places, cultures, navigation, and much more.
Young readers can discover how the electroma gnetic spectrum is a part of their lives. Award winning auth or Skurzynski uses everyday examples to show how we spend ev ery moment in a sea of electromagnetic waves, most of them i nvisible. '
This card-board engineered concertina book traces life on earth throughout the geographical strata backwards from the arrival of man to the first plants. The text contains facts about the fossil record.
"Earth Explained" moves from the forces inside the earth, like volcanoes, tectonic plates, and earthquakes, to outside forces like temperature, wind, and storms. Finally, "Earth Explained" takes a close look at land forms--like deserts, oceans, and glaciers--and the short- and long-term effects we humans have on our environment.
Ages 7 to 14 years. From the mysterious plagues and diseases of ancient times to global epidemics and the flu, these disasters have evoked fear in the hearts of people. This book looks at types of diseases, how they are spread and contained, and their costly consequences. Topics include: a step-by-step explanation of how disease and plague ...
This encyclopedia investigates the fundamental mysteries of our planet. Discover how the Earth was formed, and how it developed. Take a look at some of its powerful natural phenomena, such as the weather and earthquakes.
Ages 7 to 14 years. The Babylonians and Sumerians were using thick, gooey oil as early as 5000 BC as pitch to caulk their boats and hold their building bricks in place. Oil is actually a fuel, like coal, but its use today is more widespread through its products such as gasoline and kerosene. This book takes a fascinating look at this disappearing ...
In this hands-on science book, jam-packed with fascinating information about water, young readers can pull tabs and lift flaps to watch city water run through sewer pipes, make a boat climb up a water fall, bring the tide in and out, turn solid rock into an underground wonderland, and much, much more. Full color.
1930. From a series of letters to the author's small nephew to explain to him about the formation of rivers, mountains, clouds, the earth and the stars. Contents: When the Earth Was Hot; The Air We Breathe; Seaweed and Jellyfish; Shells and Fishes; Mountains and Rivers; Volcanoes; Silurian Period; Devonian Period; Carboniferous Period; Glaciers; ...
Ages 7 to 14 years. Sand and soil are both formed from rock. Types of soil form depending on the climate in different parts of the world. The relationship between humans and animals and the soil is a delicate one. Without soil, plants and crops could not grow and animals and wildlife could not live. Children will learn how soil and sand are formed ...
To tell the story of Earth properly, we have to go back farther than 250 B.C. To begin at the very beginning, we have to go back some 5 billion years, give or take a few million-back to an age when our planet was a steaming, red-hot ball of dust and gas.
Describes the development of geological theory from the ancient Greek philosophers to the discovery of plate tectonics, which explains the forming of geological structures.
"Planet Earth" is a concise reference book for answers to questions on the geography of our world. It describes the major physical features, environments and weather. There is also an extensive section covering the geography of most of the world's countries, including maps and data on population sizes, capital cities, currencies, religions and ...
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