When it comes to GED subtests, science might be challenging and even perplexing if you are not well prepared. With 10 sample questions and thorough explanations by Estudyme, this article will provide you with the best GED Science Sample Questions.


1. What to expect on the GED Science Test? 


The GED Science Test gauges your ability to read, understand, and interpret science-related passages. Furthermore, your problem-solving skill in science related situations is also assessed. 

The GED Science Test comprises 34 to 40 questions which are based on brief science passages as well as data displayed in graphs, tables, and pictures. 

All GED Science questions are completed within 90 minutes with no break. Some topics on the test you might encounter include: 

  • Life science
  • Earth and space science
  • Physical science

Additionally, there are a variety of GED Science question types such as:  multiple-choice, drop-down, short answer, and more.

Like the other sections of GED exams, the science exam is scored from 100-200. Furthermore, you need to achieve a score of 145 or higher so as to pass this portion. 

Math-related questions are also included on science exams. Although these questions are not particularly challenging, you should master word problems, equations, and formula manipulation. It will also be useful to understand how to utilize the TI-30 XS scientific calculator.

>>>See Also: GED Language Arts Sample Questions


2. Is the GED Science test hard?


Depending on your level of preparation, the science exam’s question difficulty will vary. The most challenging questions on the test might be the ones you haven’t studied enough.  The best strategy is to study, take GED Science Practice Tests, spend more time on the areas where you struggle, then retake the practice test to ensure that you have improved. We believe that you will be ready for the test if you use this technique.

To pass the GED Science test, you must respond correctly to between 22 and 26 questions.

>>>See Also: GED Mathematical Reasoning Sample Questions


3. Effective tips to score high in GED Science exam


GED science tips
Effective tips to ace the GED Science test

Remember that learning facts for the GED science exam is not the goal. Instead, you’ll have to interpret scientific data using your logical thinking abilities. As part of GED test prep, here are some our tips for passing this GED section with a high score: 


3.1. Look for trends in the data


A lot of data is shown in graphs and tables. You only need to be able to recognize how the numbers relate to one another in order to solve them. Look for connections between each table’s component in both direct and indirect ways. You should now be able to respond to inquiries about the connections between the variables at hand.

>>>See Also: GED Social Studies Sample Questions


3.2. Identify dependent and independent variables


Make sure you understand the distinction between dependent and independent variables because there will generally be a few questions regarding them. In an experiment, the factors under modification or control are known as independent variables. The variables under test and being measured are known as dependent variables. The impact on the dependent variable is seen and recorded as the experimenter modifies the independent variable. Consider doing an experiment to compare the impact of various fertilizer dosages on plant growth, for instance. The independent variable would be the quantity of fertilizer utilized. The dependent variable would be the plants’ rate of growth.


3.3. Read the question prior to reading long paragraphs


For a better understanding of what to look for in the written material, read the question first. Find the information you’re seeking for by reading the paragraphs till you do. Read the question again if you find yourself reading the entire passage. If you read the question again, you might be able to remember the details.

Do not read the full passage again if you must! By scanning the passage for the information, you can find the key details. It’s time to guess and move on if you find yourself pondering an answer for more than a minute. Don’t forget to mark the question so you may go back and review it if you have time at the conclusion of the test.


3.4. Be wary of the highlight tool


You can use a highlighting tool to mark up the paragraphs as you read them. You might discover, though, that using the highlighter is only a time-consuming diversion. Using a writing pad to make notes as needed might be more efficient. Use the highlight feature just if you think it to be useful; don’t feel obligated to.


3.5. Pace yourself and answer every question


The science portion has a 90-minute time limit, however you can use the navigator to leave a question and return to it later. You can skip an early text or illustration if it seems overly complicated to you and reserve it until the conclusion. Since there are no consequences for giving the incorrect answer, it’s crucial to control your pace while still making sure you at least guess at every question.


3.6. Eliminate the “obviously wrong” choices first


Even if you are unable to identify the right response, strive to eliminate answer options that are incompatible with the information provided and hence cannot possibly be correct. If you are only given two possibilities rather than four, you will be more likely to make the right guess.


3.7. Pro tips


  • Using the question as a source of information ( graph, chart, diagram, text, etc.)
  • Paying more attention to the bigger picture—don’t get lost in the basic details of a topic.
  • Using data to make conclusions
  • Reviewing an experiment and finding the hypothesis, variables, errors, etc.
  • Knowing how to apply math in a scientific setting


4. GED Science Sample Questions 


Here are 10 sample GED Science questions with keys and detailed explanations. You should apply our aforementioned tips or read the GED Science Study Guide carefully before heading over to these samples. In case you want to prepare for the other GED subject, visit our GED Test Pro homepage right now!


Question 1: Each neutron and proton in an atom’s nucleus has the same atomic mass: one dalton. If an atom loses neutrons due to radioactive decay, it may also lose protons, in which case, the atom becomes an atom of a different element. Uranium 238, a very unstable element, goes through many stages of radioactive decay. During this process, it becomes thorium, radium, and radon (among other elements), before finally becoming lead 206, a stable isotope of lead.

(A). What can you infer from the information?

(B). Lead 206 is the heaviest isotope of lead.

(C). Lead is the heaviest element.

(D). Neutrons are not affected by radioactive decay.

(E). Radium is lighter than uranium.

(F). Thorium is more radioactive than uranium.

Correct Answer: E

Explanation: Each neutron and proton in a nucleus has the same mass. Thus, if an atom of one element loses protons through radioactive decay, it becomes lighter. Since uranium decays to become radon, it must be heavier than radium—and, conversely, radium must be lighter than uranium.


Question 2: Mass times velocity

(A) Gravity

(B) Force

(C) Inertia

(D) Momentum

Correct Answer: D

Explanation: Momentum is equal to mass times velocity.


Question 3: Energy flows through the food chain from

(A) producers to consumers to decomposers

(B) producers to secondary consumers to primary consumers

(C) decomposers to consumers to producers

(D) secondary consumers to producers

Correct Answer: A

Explanation: Energy flows through the entire ecosystem in one direction, from producers to consumers and on to decomposers through the food chain.


Question 4: When two point sources of monochromatic light are kept at finite distance, we see alternating bright and dark rings. Which of the following phenomena is responsible for this effect?

(A) Reflection of light

(B) Refraction of light

(C) Dispersion of light

(D) Diffraction of light

(E) Interference of waves

Correct Answer: E

Explanation: The phenomenon occurs because of constructive and destructive interference of light waves. Points where constructive interference occurs appear bright while points where destructive interference occurs appear dark.


Question 5: Which of the following phenomenon is responsible for Mirage?

(A) Reflection

(B) Refraction

(C) Convection

(D) Conduction

(E) None of the above.

Correct Answer: B

Explanation: Light is bent while passing from a denser medium having higher refractive index to medium having lower refractive index causing images of distant objects to be produced. The bending of light as such is known as refraction.

Supplement:  Think ‘more temperature, more motion’.  Viscosity or ‘stickiness’ generally DECREASES with heating.


Question 6: Bases contain more ___ ions.

(A) Neutral

(B) Hydrogen

(C) Hydroxide

(D) Polyethylene

Correct Answer: C

Explanation: Bases contain more hydroxide ions, and as you move up the scale, the amount increases.


Question 7: A cook decides to recover some table salt that has been completely dissolved in water. Which of the following processes would be the most effective method of extracting salt from the solution?

(A) spinning the solution in a mixer

(B) boiling away the water

(C) pouring the solution through cloth

(D) dripping the solution through a paper filter

(E) bubbling oxygen through the solution

Correct Answer: B


In a salt solution, microscopic particles of salt will pass through either a cloth or paper filter and will be unaffected by bubbling or spinning in a mixer, making (A), (C), (D), and (E) incorrect. Only (B), boiling the water, will leave a salty residue on the original container.


Question 8: A species may live in association with another species. Such an arrangement is called symbiosis. Symbiosis in which both species benefit is called mutualism. If the symbiosis is beneficial to one species and neither beneficial nor harmful to the other, it is called commensalism. If one species benefits at the expense of the other, the relationship is called parasitism. A tick that attaches to the skin of a human or animal and feeds on its blood is an example of_________

(A). coevolution.

(B). commensalisms.

(C). competition.

(D). mutualism.

(E). parasitism.

Correct Answer: E

Explanation: The tick is a parasite. It benefits, while the animal it feeds from suffers.


Question 9: Earthquakes occur due to the movement of tectonic plates. In which of the following layers of earth’s crust does the movement occur?

(A). Core

(B). Mesosphere

(C). Asthenosphere

(D). Mantle

(E). Lithosphere

Correct Answer: E

Explanation: Plate tectonics is a scientific theory that describes the large-scale motion of earth’s lithosphere. Supplement: Core and mantle are below the crust. ‘Astheno-‘ means ‘weak’ matter just below the stone [litho-] crust layer. ‘Mesosphere’ is atmospheric.

In short, this article has given you 9 GED Science Sample Questions. Let’s take them seriously and move on to other GED subjects.