GED® Science: Earth & Space Science
Earth and Space Science rounds out the GED® Science test, alongside life science and physical science. This course takes you from deep inside our planet out to the edge of the solar system: Earth's layers, plate tectonics, the rock cycle, the water cycle, weather and the atmosphere, the planets, and the cycles of the Moon and the seasons. Every topic uses plain language, labeled diagrams, and GED®-style practice with full explanations.
📚 Go Deeper — Companion Courses
- 1 GED® Science: Earth's Structure & Layers (Deep Dive)
- 2 GED® Science: Plate Tectonics & Earth's Changing Surface (Deep Dive)
- 3 GED® Science: The Rock Cycle & Minerals (Deep Dive)
- 4 GED® Science: Earth's Water & the Water Cycle (Deep Dive)
- 5 GED® Science: Weather, Climate & the Atmosphere (Deep Dive)
- 6 GED® Science: The Solar System & Earth in Space (Deep Dive)
- 7 GED® Science: The Moon, Seasons & Earth's Cycles (Deep Dive)
📚 Course Curriculum
If you could slice Earth open, you would see it is built in layers, like an onion — each made of different material and getting …
Open trial session →Earth's rigid outer shell is cracked into giant slabs called tectonic plates that slowly slide on the hot, flowing mantle beneath. They move only a …
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Rocks are not permanent — over long stretches of time, any rock can be changed into another kind. This never-ending set of changes is the …
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About 71% of Earth's surface is covered by water, but most of it is salty ocean. Only a small fraction is the fresh water that …
Open trial session →Earth is wrapped in a blanket of gases called the atmosphere — mostly nitrogen (about 78%) and oxygen (about 21%). It holds in heat, blocks …
Open trial session →Our solar system is the Sun plus everything held by its gravity: eight planets, their moons, and countless asteroids and comets. The Sun is an …
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Earth is part of a three-body system with the Sun and the Moon, and their motions create cycles we see every day. Phases of the …
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Course Syllabus
Course Outcomes
📝 Practice Questions
26 interactive questions with instant feedback and explanations.
Enroll for free to unlock the full practice bank after the trial sessions.