Earth Science: Science Terms Explained

Plain-language definitions of every earth science term your child meets in school, each with kid-friendly explanations, worked examples, and common mistakes to watch for.

Tectonic plates

TECTONIC PLATES are huge, rigid pieces of Earth's outer shell that fit together like a jigsaw puzzle and slowly move over the softer rock beneath, shaping Earth's surface by forming mountains, causing earthquakes, and creating volcanoes where they meet.

Topographic map

A topographic map is a detailed map that shows the shape and height of the land using contour lines, symbols, and colors so you can see hills, valleys, and other landforms from above.

Every term here links to practice activities. Create an account to get started with your child.

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