GED® Science
Life science, physical science, earth & space, and environmental science — plus scientific reasoning skills.
Life Science
Cells, genetics, evolution, ecosystems, the human body, and homeostasis.
GED® Science: Life Science
Life Science is the largest part of the GED® Science test. This course takes you from the tiny cell all the way up to whole ecosystems: how cells …
GED® Science: The Cell -- Structure & Function (Deep Dive)
A deep dive into the cell, expanding the single 'The Cell' lesson from the GED® Life Science course into a full mini-course. You'll learn the cell theory and …
GED® Science: Cellular Energy (Deep Dive)
A deep dive into how living things get, store, and use energy, expanding the single 'Cellular Energy' lesson from the GED® Life Science course into a full mini-course. …
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GED® Science: Genetics & Heredity (Deep Dive)
A deep dive into how traits are passed from parents to offspring, expanding the single 'Genetics & Heredity' lesson from the GED® Life Science course into a full …
GED® Science: Evolution & Natural Selection (Deep Dive)
A deep dive into how life changes over time, expanding the single 'Evolution & Natural Selection' lesson from the GED® Life Science course into a full mini-course. You'll …
GED® Science: Ecosystems & Energy Flow (Deep Dive)
A deep dive into how living things interact and how energy moves through nature, expanding the single 'Ecosystems & Energy Flow' lesson from the GED® Life Science course …
GED® Science: Human Body Systems & Health (Deep Dive)
A deep dive into how the human body is built and kept alive, expanding the single 'Human Body Systems' lesson from the GED® Life Science course into a …
GED® Science: Homeostasis & Life Science Data (Deep Dive)
A deep dive into how living things stay in balance and how to reason with science data, expanding the single 'Homeostasis & Reading Science Data' lesson from the …
GED® Science: Microbiology, Viruses & Disease
Bacteria, viruses, fungi, and protists are everywhere — and understanding them is key to the Life Science portion of the GED® Science test. This course walks through the …
Physical Science
Matter, atoms, chemical reactions, energy, forces, motion, machines, and waves.
GED® Science: Physical Science
Physical Science is the chemistry-and-physics half of the GED® Science test. This course takes you from the particles inside matter all the way up to the forces that …
GED® Science: Matter and Its States (Deep Dive)
A deep dive into matter, expanding the single 'Matter and Its States' lesson from the GED® Physical Science course into a full mini-course. You'll use the particle model …
GED® Science: Atoms, Elements & the Periodic Table (Deep Dive)
A deep dive into the building blocks of matter, expanding the single 'Atoms, Elements & the Periodic Table' lesson from the GED® Physical Science course into a full …
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GED® Science: Chemical Reactions & Conservation of Mass (Deep Dive)
A deep dive into chemical change, expanding the single 'Chemical Reactions & Conservation of Mass' lesson from the GED® Physical Science course into a full mini-course. You'll learn …
GED® Science: Energy and Its Forms (Deep Dive)
A focused Physical Science deep dive on kinetic and potential energy, chemical, thermal, electrical, light, and sound energy, energy transformations, conservation of energy, heat transfer, efficiency, and GED® …
GED® Science: Forces and Motion (Deep Dive)
A Physical Science deep dive into pushes and pulls, net force, inertia, Newton's laws, gravity, friction, acceleration, speed, and reading motion graphs.
GED® Science: Work, Power & Simple Machines (Deep Dive)
A focused companion course on scientific work, power, mechanical advantage, simple machines, ramps, levers, pulleys, efficiency, and GED®-style formula/data questions.
GED® Science: Waves, Energy & Reading Science Data (Deep Dive)
A focused deep dive into waves as energy transfer, wave anatomy, amplitude, wavelength, frequency, transverse and longitudinal waves, sound, light, and wave-data interpretation.
GED® Science: Electricity & Magnetism
Electricity and magnetism are two of the most tested Physical Science topics on the GED®. This course builds from the basics of electric charge and current all the …
Earth & Space Science
Earth's structure, plate tectonics, the rock and water cycles, weather, the solar system, and Earth's cycles.
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 …
GED® Science: Earth's Structure & Layers (Deep Dive)
A deep dive into the inside of our planet, expanding the single 'Earth's Structure & Layers' lesson from the GED® Earth & Space Science course into a full …
GED® Science: Plate Tectonics & Earth's Changing Surface (Deep Dive)
A deep dive into the theory that reshaped Earth science, expanding the single 'Plate Tectonics & Earth's Changing Surface' lesson from the GED® Earth & Space Science course …
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GED® Science: The Rock Cycle & Minerals (Deep Dive)
A deep dive into the rocks beneath your feet, expanding the single 'Rock Cycle & Minerals' lesson from the GED® Earth & Space Science course into a full …
GED® Science: Earth's Water & the Water Cycle (Deep Dive)
A deep dive into Earth's water, expanding the single 'Earth's Water & the Water Cycle' lesson from the GED® Earth & Space Science course into a full mini-course. …
GED® Science: Weather, Climate & the Atmosphere (Deep Dive)
A deep dive into the air around us, expanding the single 'Weather, Climate & the Atmosphere' lesson from the GED® Earth & Space Science course into a full …
GED® Science: The Solar System & Earth in Space (Deep Dive)
A deep dive into our cosmic neighborhood, expanding the single 'Solar System & Earth in Space' lesson from the GED® Earth & Space Science course into a full …
GED® Science: The Moon, Seasons & Earth's Cycles (Deep Dive)
A deep dive into the rhythms of the sky, expanding the single 'Moon, Seasons & Reading Science Data' lesson from the GED® Earth & Space Science course into …
GED® Science: Stars, Galaxies & the Universe
From the star next door to the edge of the observable universe — this course covers the astronomy portion of the GED® Earth & Space Science domain. You …
Environmental Science
Ecosystems, biodiversity, human impact, climate change, pollution, conservation, and sustainability.
GED® Science: Environmental Science & Human Impact
Explore how living things interact with each other and the planet — and what happens when humans change those interactions. This course covers ecosystems, food webs, energy flow, …
GED® Science: Ecosystems, Food Webs & Biodiversity
A focused environmental science course on ecosystems, food webs, energy flow, biodiversity, carrying capacity, and conservation. Lessons build the ideas in a natural order, with GED®-style reasoning and …
GED® Science: Climate, Pollution & Sustainability
A focused GED® Science course on greenhouse gases, climate evidence, water and air pollution, nutrient runoff, resource use, and sustainability. Includes new visuals and 20 GED®-style MCQs.
Scientific Reasoning
The scientific method, experimental design, data analysis, and evidence-based reasoning.
GED® Science: Scientific Reasoning & Practices
About half of the GED® Science test is not about memorizing facts -- it is about thinking like a scientist. This course builds those test-day skills directly: how …
GED® Science: Experimental Design & Fair Tests
A practical GED® Science reasoning course on hypotheses, variables, controls, fair tests, replication, sample size, bias, and valid experiment-based conclusions. Includes new visuals and 20 MCQs.
GED® Science: Data, Graphs & Evidence
A GED® Science reasoning course on reading tables, graphs, scatterplots, averages, variation, evidence, correlation, causation, and valid conclusions. Includes new visuals and 20 MCQs.
Complete Review
Full-length practice and mixed review spanning all three science content areas.
GED® Science: Full-Length Practice Test (Life, Physical, Earth & Space)
A capstone GED® Science practice test that mixes every strand into one comprehensive review: Life Science (cells, energy, genetics, evolution, ecosystems, the human body), Physical Science (matter, atoms, …
GED® Science: Environmental Science Complete Review – Vol. 1 (Ecosystems & Human Impact)
A comprehensive GED® Environmental Science review covering ecosystems, biomes, food webs, energy flow, nutrient cycles, biodiversity, population dynamics, human impact on the environment, land use, and conservation strategies. …
GED® Science: Environmental Science Complete Review – Vol. 2 (Climate, Pollution & Sustainability)
A comprehensive GED® Environmental Science review covering Earth's climate system, the greenhouse effect, evidence for and causes of climate change, its ecological and human impacts, air and water …
Full-Length Practice Exams
Timed, test-day-style GED Science exams -- 34 questions each, spanning Life, Physical, and Earth & Space Science -- in six difficulty tiers, from foundational (Level 1) to mastery (Level 6).
GED® Science: Full-Length Practice Exam (Level 1 - Foundational)
A full-length, test-day-style GED® Science practice exam: 34 questions modeled on the real blueprint, spanning Life Science, Physical Science, and Earth & Space Science, with scientific-reasoning items (reading …
GED® Science: Full-Length Practice Exam (Level 2 - Advanced)
A tougher, second full-length GED® Science practice exam for students who have cleared Level 1. Same test-day format -- 34 questions across Life, Physical, and Earth & Space …
GED® Science: Full-Length Practice Exam (Level 3 - Expert)
The hardest of the early-tier GED® Science practice exams, for students who have cleared Levels 1 and 2. Same test-day format -- 34 questions across Life, Physical, and …
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GED® Science: Full-Length Practice Exam (Level 4 - Mastery)
The fourth and second-hardest full-length GED® Science practice exam, for students aiming at a top score after clearing Levels 1-3. Same test-day format -- 34 questions across Life, …
GED® Science: Full-Length Practice Exam (Level 5 - Elite)
The fifth and hardest full-length GED® Science practice exam -- the elite tier, for students who have cleared Levels 1-4 and want the toughest possible rehearsal. Same test-day …
GED® Science: Full-Length Practice Exam (Level 6 - Mastery)
A sixth full-length GED® Science practice exam -- the Mastery tier, an all-new elite-ceiling rehearsal for students who have cleared Levels 1-5. Same test-day format -- 34 questions …