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The Real-World Science Supplement
to Scholastic News.
the rocky outer layer of Earth
Earth's crust is the planet’s outer surface.
the thick zone of rock beneath Earth’s crust
Earth’s mantle is made up of hot rock that can flow like a liquid.
a scientist who studies Earth’s history and structure
Geologists study rocks to learn more about Earth’s history and structure.
a section of Earth’s crust that moves slowly over Earth’s inner layers
Tectonic plates fit together like a jigsaw puzzle to form Earth’s outer surface.
living things, such as bacteria, too small to be seen with the naked eye
Microbes are found everywhere, but are too small to be seen.