GED® Science — GED® is a registered trademark of the American Council on Education, administered by GED Testing Service
The GED science test — reading scientific texts, designing experiments and reading data across life, physical, and earth and space science.
About the exam
The GED test is for adults who didn't finish high school. Pass all four subjects — Reasoning Through Language Arts, Mathematical Reasoning, Science and Social Studies — and you earn your state's high school equivalency credential, which employers, colleges, training programs and the military accept like a diploma. You can take the subjects one at a time, in any order.
GED Science runs 90 minutes with no break, at roughly 34–40 questions. It's a reasoning test more than a memory test: most questions are built on a short passage, data table, graph, diagram or experiment description, and you'll design investigations, read data and judge whether evidence supports a conclusion. Content comes from life science, physical science and earth and space science, with an on-screen calculator available throughout.
Our practice covers every content area with original questions in the real formats — experiment set-ups, data tables and graphs, Punnett squares and short science passages — with science practices folded into every topic. Every calculation, from density and speed to mean and probability, has a step-by-step worked solution. Add flashcards for key terms and formulas, worked walkthrough case studies of experiments and data sets, illustrated guides to the core systems, and timed practice tests with an estimated GED score.
How we track your progress
Every blueprint domain moves through five levels as you study:
- Not startedNo questions answered in this domain yet.
- Getting startedFirst questions answered — not enough yet to judge.
- DevelopingAt least 5 answered and 50% or better on your recent questions.
- ProficientAt least 15 answered and 70% or better on your recent questions.
- Exam readyAt least 25 answered, 80% or better recently, and holding up on hard questions.
The exam blueprint
GED test subject assessment targets — GED Testing Service. The current computer-based GED test format has been in place since 2014 (with the 145 passing score since 2016); no format change has been announced for 2026–27 — confirm on GED.com. — Life Science (about 40%), Physical Science (about 40%) and Earth and Space Science (about 20%), with science practices throughout. Tap a domain to see its topics.
1 Life Science about 40% of the exam
180 practice questions in this domain so far
2 Physical Science about 40% of the exam
180 practice questions in this domain so far
3 Earth and Space Science about 20% of the exam
90 practice questions in this domain so far
What you get when you access this exam
Free with your QuizMe account.
Questions built on the official assessment targets
Every question is tagged to a GED Science content area — original science passages, experiment set-ups, data tables, graphs and diagrams, in the real formats.
Hints that teach the skill
Reveal the science concept or reasoning skill behind the question when you're stuck. Every answer comes with the full rationale, and every calculation is worked step by step.
Adaptive practice
Questions steer toward your weakest content areas, weighted like the real test, and get harder as you get stronger.
Timed practice tests
Content-weighted tests at the real pace — 38 questions in 1 hour 30 minutes — with a pacing indicator, full review and an estimated GED score.
Flashcards, walkthroughs and guides
Flashcards for key terms and rules, worked walkthrough case studies that solve harder questions step by step, and interactive illustrated guides you explore hotspot by hotspot.
Progress in every content area
Each area moves from Not started to Exam ready, so you know exactly what to study next.
Test at home or at a center
The GED test is computer-based and you schedule each subject separately, in any order, through your account at GED.com. Each state sets its own price, ID and age rules.
At a Pearson VUE test center
- Schedule a date and time on GED.com; centers offer many dates year-round.
- Bring the government-issued photo ID your state accepts, and arrive early to check in.
- Phones, bags and notes go in a locker; you get an erasable noteboard and the on-screen calculator where allowed.
- On Math, Science and Social Studies you may bring your own TI-30XS MultiView calculator to a test center.
Online proctored at home
- Offered where your state allows it — you first need a green (Likely to Pass) GED Ready score in that subject within the last 60 days.
- Use a computer with a webcam and microphone in a private room with the door closed and no one else present.
- Only the on-screen calculator and on-screen whiteboard are allowed — no handheld calculator or scratch paper.
- No unscheduled breaks; run the system check well before test day.
Exam-day game plan
How to walk in ready — and how to pace 38 questions in 1 hour 30 minutes.
Pacing checkpoints
The real Science test is a single 90-minute section with no break, at roughly 34–40 questions depending on the form. Our timed test runs 38 questions in 90 minutes. Drag-and-drop, drop-down and hot-spot items are approximated with multiple choice and typed numeric answers, and there's no built-in calculator — keep a scientific calculator handy.
The week before
- Take a GED Ready practice test in Science — a green score tells you you're likely to pass, and you need one to test online.
- Practice naming the independent variable, dependent variable and control in experiment descriptions.
- Review mean, median, range and Punnett-square probability — they come up as quick calculations.
- Confirm your appointment, ID and route (or run the online system check).
During the test
- Read the question first, then go to the passage, table or graph for exactly what it asks.
- Check graph titles, axis labels and units before choosing an answer.
- Base answers on the data shown — the test rewards reasoning from evidence, not outside trivia.
- Use the on-screen calculator and reference sheet for density, speed and averages.
- Flag hard questions, choose your best answer and return if time allows.
Keep your head
- A few nerves sharpen focus. If you freeze, take three slow breaths and reread the question.
- Every subject is scored on its own — one tough subject doesn't undo the others, and you can retake just that one.
- Answer every question; there's no penalty for guessing, so never leave one blank.
After you test
- Most subject scores appear in your GED.com account the same day, with a report listing the skills to work on (the RLA essay can take a little longer to score).
- Pass all four subjects with 145 or higher to earn your state's high school equivalency credential and transcript, issued through GED.com.
- If you score below 145 you can retake that subject — states usually allow a couple of retakes, often discounted, before a waiting period applies; College Ready scores may also exempt you from placement tests or earn credit at some colleges.
Official sources and further reading
- GED.com — test subjects ↗Official overview of each subject, question types and timing.
- GED.com — understanding your scores ↗Passing, College Ready and College Ready + Credit score bands.
- GED.com — take the GED test online ↗Online-proctored requirements, including the GED Ready green score.
Ready to start?
450 questions and scenarios across the blueprint — and growing.
GED® is a registered trademark of the American Council on Education, administered by GED Testing Service. QuizMe and thinQtank Learning are not affiliated with or endorsed by the American Council on Education or GED Testing Service. All questions are original. Details are summarized from GED Testing Service's official GED.com pages; fees and policies change — always confirm at ged.com. Estimated scores are rough guides, not official conversions.