GED Science Preparation Course: final exam 2026
A new random set of 40 questions from the course every time. Score 80% or more to download your certificate. You see your answers at the end.
- 40 questions
- Pass mark: 145 on a 100–200 scale
- Score 80% or more to download your certificate.
- 40 minutes
How this mock exam works
Each attempt draws 40 questions at random from all 100 questions for this test, so no two attempts are the same.
The official test has these parts:
- One 90-minute section with no breaks
- Content: about 40% life science, 40% physical science and 20% Earth and space science
- Question types: multiple choice, drag and drop, fill-in-the-blank, select an area (hot spot) and drop-down
At the end you see your score, every answer and its explanation. Your best score is saved in this browser, so you can try again until you pass comfortably.
What you will learn
- Describe the format, timing, calculator rules and scoring of the GED Science test
- Identify hypotheses, variables and controls, and judge how well an experiment is designed
- Read tables and graphs, make predictions, and calculate the mean, median, range and probability
- Explain body systems, homeostasis, nutrition, disease, cells and heredity, including Punnett squares
- Trace energy through ecosystems and explain natural selection
- Calculate speed, acceleration, momentum, force, work, power and density, and balance simple equations
- Explain Earth's cycles, plate tectonics, natural hazards, climate, and the Sun, Moon and stars
Score 80% or more to download your certificate.