GED Practice Questions

GED Science Practice Questions

GED Science Reasoning — Practice with sample questions covering life science, physical science, and earth & space science. Each question includes a thorough explanation focused on scientific reasoning and data interpretation.

34
Total Questions
90 minutes
Time Limit
145 out of 200
Passing Score
~$30-40
Registration Fee

Free Sample Questions

Here are 5 free sample questions from our full bank of 150+ GED Science practice questions. Try them out below — click "Show Answer" to reveal the correct response and explanation.

1

A plant placed near a window grows toward the light. This response is an example of which biological process?

AA) Photosynthesis
BB) Phototropism
CC) Osmosis
DD) Mitosis
2

Which of the following best describes the function of the cell membrane?

AA) It stores genetic information for the cell
BB) It produces energy for cellular activities
CC) It controls what enters and exits the cell
DD) It manufactures proteins for the cell
3

An object at rest stays at rest, and an object in motion stays in motion unless acted on by an external force. This statement describes which of Newton's laws?

AA) Newton's First Law (Law of Inertia)
BB) Newton's Second Law (F = ma)
CC) Newton's Third Law (Action-Reaction)
DD) Newton's Law of Universal Gravitation
4

A scientist observes that a certain type of bacteria grows faster in warm temperatures than in cold temperatures. She then states: 'If the temperature is increased to 40°C, then the bacteria will grow even faster.' This statement is best described as a:

AA) Theory
BB) Conclusion
CC) Hypothesis
DD) Scientific law
5

The ozone layer in Earth's atmosphere primarily protects living organisms from:

AA) Visible light from the Sun
BB) Harmful ultraviolet (UV) radiation from the Sun
CC) Infrared radiation that causes global warming
DD) Cosmic rays from distant galaxies

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About the GED Science

Format & Structure

Total Questions
34
Time Limit
90 minutes
Format
Multiple choice, fill-in, drag-and-drop

Scoring & Cost

Passing Score
145 out of 200
Registration Fee
~$30-40

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Frequently Asked Questions

What topics are on the GED Science section?

The GED Science section covers three content areas: Life Science (about 40% of questions) including cell biology, genetics, evolution, and ecology; Physical Science (about 40%) including chemistry, physics, and energy; and Earth and Space Science (about 20%) including the solar system, weather, geology, and the environment. The questions focus on scientific reasoning and data interpretation, not just memorizing facts.

Can I use a calculator on the GED Science section?

Yes, a TI-30XS on-screen calculator is available for the entire GED Science section. This is helpful because some questions involve calculations with data from charts, graphs, or experiments. You'll also have access to a periodic table when needed for chemistry-related questions.

How many questions are on the GED Science section?

The GED Science section has approximately 34 questions that you need to complete in 90 minutes. That gives you roughly 2.5 minutes per question. Questions include multiple choice, fill-in-the-blank, drag-and-drop, and drop-down formats. Many questions are based on reading passages, data tables, or graphs that you'll need to analyze.

Do I need to memorize the periodic table for the GED Science?

No, you don't need to memorize the periodic table. A periodic table is provided during the assessment when needed. What you DO need to understand is how to read it -- how to find atomic number, atomic mass, element symbols, and what the organization of the table tells you about element properties. Focus on understanding these concepts rather than memorizing specific element data.

How should I study for the GED Science section?

Focus on developing your scientific reasoning skills rather than memorizing facts. Practice reading scientific passages and interpreting data from charts and graphs -- that's what most questions actually test. Learn the scientific method and vocabulary (hypothesis, variable, control group, etc.). Review basic concepts in biology, chemistry, physics, and earth science at a general level. Practice questions with explanations are one of the most efficient study tools because they show you how to think through science problems.

What score do I need to pass the GED Science section?

You need a minimum score of 145 out of 200 to pass the GED Science section. Scores of 165-174 earn a 'College Ready' designation, and scores of 175+ earn 'College Ready + Credit.' Many GED takers find Science to be one of the more approachable sections because it emphasizes reading comprehension and reasoning skills that transfer from everyday life.

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