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Granite, limestone, marble, and sandstone are examples of kinds of rock. Geologists divide rocks into three large groups: igneous, metamorphic, and sedimentary. Lava or magma form igneous rock....
Geology is an important science for many reasons. It answers questions about how Earth came to have its present shape and form. It is useful for finding important materials in Earth’s crust, such as oil. Geology is also helpful for predicting earthquakes and other natural hazards.
We’re exploring some of the most interesting facts about rocks that you may not have heard before. From the oldest rocks on Earth to space rocks, these top 10 facts about rocks will help you learn more about the amazing variety of rocks that make up our planet.
Learn all about our amazing planet with our facts about the Earth! How big is Earth? Why do we have day and night, and four seasons? How old is the Earth?
Learn all about the structure of the Earth here at National Geographic Kids! Join us as we explore the different layers - the crust, upper mantle, lower mantle, outer core and inner core...
Geology is the study of the nonliving things that the Earth is made of. Geology is the study of rocks in the Earth's crust. People who study geology are called geologists. Some geologists study minerals and the useful substances the rocks contain (such as natural gas and oil). Geologists also study the history of the Earth.
Rocks form the Earth's outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of magma in the asthenosphere. The study of rocks involves multiple subdisciplines of geology, including petrology and mineralogy.
Check out these fascinating volcano facts with National Geographic Kids! What is a volcano? Why does it erupt? And where can you find the world's biggest?
Enjoy our wide range of fun facts and information about different types of rocks and minerals for kids. Learn what rocks and minerals are, what the difference is, examples of rocks and minerals, the difference between igneous, sedimentary and metamorphic rocks, Mohs scale of hardness and much more.
Introduction. Geologic time is the billions of years since the planet Earth began developing. Scientists who study the structure and history of Earth are called geologists. Their field of study is called geology. Geologists study rocks and fossils, or remains of living things that have been preserved in the ground.