Try our free GED Science practice test. This test is designed to help you prepare for the science section of the test by giving you a chance to apply your knowledge of life science, physical science, and earth science. Start your test prep right now with these GED Science practice questions!
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Question 1 of 20
The tilt of Earth’s rotational axis toward or away from the sun causes:
Question 2 of 20
This table describes the 4 trophic levels\(:\)
Trophic Level Where It Gets Food Example
1st trophic level: Makes its own food
Plants make food
2nd trophic level: Consumes producers
Mice eat plant seeds
3rd trophic level: Consumes primary consumers
Snakes eat mice
4th trophic level: Consumes secondary consumers
Hawks eat snakes
Based on the table, which of the following animals would be classified as a tertiary consumer?
Question 3 of 20
White-nose syndrome is an emerging disease that affects North American bats. The disease is named for a white fungal growth around the muzzles and the wings of hibernating bats. It was first identified in 2006 in a cave in New York State, but it has since spread rapidly across the United States. No treatment is known and some species have declined by more than 90% as a result of the disease.
The Kentucky State Park System is very concerned about the health of their 6 bat colonies and began counting the bats in each colony once a year. Below are the results for 2019, 2020, and 2021.
What was the mean number of bats in 2020 for the six colonies in the park?
Question 4 of 20
White-nose syndrome is an emerging disease that affects North American bats. The disease is named for a white fungal growth around the muzzles and the wings of hibernating bats. It was first identified in 2006 in a cave in New York State, but it has since spread rapidly across the United States. No treatment is known and some species have declined by more than 90% as a result of the disease.
The Kentucky State Park System is very concerned about the health of their 6 bat colonies and began counting the bats in each colony once a year. Below are the results for 2019, 2020, and 2021.
What was the median number of bats in 2021 for the six colonies in the park?
Question 5 of 20
Use the energy pyramid to answer the question.
How is energy obtained by primary producers?
Question 6 of 20
The Grand Canyon, located in the Grand Canyon National Park in Arizona, was created approximately 5 million years ago from the Colorado River. The Grand Canyon is 277 miles long, up to 18 miles wide, and reaches a depth of over a mile.
What interaction between Earth’s systems was most likely responsible for the creation of this landmark?
Question 7 of 20
Multiple studies have supported the following two hypotheses:
I. Increasing the temperature of Solvent A allows all dissolvable solutes to dissolve faster.II. Substance A is dissolvable in Solvent A, while Substance B is not.
Given these two hypotheses, which of the following is most likely to be true?
Question 8 of 20
When a person reaches out and touches a hot pan, the __________ system is triggered and activates the __________ system to move the hand away.
Question 9 of 20
In mice, grey fur color is dominant to white fur color. Two mice mate and produce offspring; the female mouse has the genotype (gg) that results in white fur color, while the male mouse has the genotype (Gg) that results in grey fur color.
Use the Punnett square to calculate the probability that these two mice will produce an offspring with white fur.
Question 10 of 20
The oceans on earth experience tides, waves, and currents. These factors change how humans experience the ocean and impact how ocean water interacts with land. Tides are changes in the sea levels of the ocean that occur periodically.
Which of the following is the cause of ocean tides?
Question 11 of 20
Yellowstone National Park is known for its unique population of animals and diverse landscapes. The Rocky Mountain wolf has kept a long-lasting predator-prey relationship with the deer in the park. Over the last few years, grey wolves have been reintroduced to diversify the animal population.
Based on the chart above, what is the relationship between the Rocky Mountain and grey wolf?
Question 12 of 20
A seesaw is an example of what type of simple machine?
Question 13 of 20
DNA is an abbreviation for deoxyribonucleic acid. DNA is hereditary material that contains the instructions an organism needs to develop, live, and reproduce. Information is stored in DNA as a code that is made up of four chemical bases: adenine, guanine, cytosine, and thymine. The sequence of these bases determines the information available for building an organism.
DNA can best be compared to:
Question 14 of 20
What numbers are needed in the blank spaces to balance the chemical equation?
S8 + __F2 → __SF6
Question 15 of 20
Use Newton’s second law to find the initial acceleration of an object with a mass of 40 kg when a force of 6 N is applied. For this problem, ignore direction and round to the nearest hundredth.
Newton’s second law: F = ma
Enter the acceleration below in m/s2 :
Question 16 of 20
A study was carried out involving the heart rates of 2 subjects, one with previous cycling training and one who self-reported living a sedentary lifestyle. The subjects’ heart rates were measured during 15 minutes of cycling. The graph below depicts the heart rate of each individual as the work rate increased.
Which of the following conclusions can be inferred from the data depicted in the graph?
Question 17 of 20
The equation provided represents photosynthesis.
Which of these statements about photosynthesis is true?
Question 18 of 20
Peter hypothesizes that if students switch from a cereal breakfast to a high-protein breakfast, their grades will improve. The steps of his experiment are given below. Arrange the steps in the correct order from first to last to give the best experimental design.
Reorder
Provide the experimental group with a high protein breakfast menu and a breakfast diary.
Move "Provide the experimental group with a high protein breakfast menu and a breakfast diary." down
Move "Provide the experimental group with a high protein breakfast menu and a breakfast diary." up
Reorder
Record the 2nd quarter grades of all the students.
Move "Record the 2nd quarter grades of all the students." down
Move "Record the 2nd quarter grades of all the students." up
Reorder
Identify a group of students who normally eat cereal for breakfast and record their 1st quarter grades.
Move "Identify a group of students who normally eat cereal for breakfast and record their 1st quarter grades." down
Move "Identify a group of students who normally eat cereal for breakfast and record their 1st quarter grades." up
Reorder
Review the grades from both quarters and analyze the differences between the 2 groups.
Move "Review the grades from both quarters and analyze the differences between the 2 groups." down
Move "Review the grades from both quarters and analyze the differences between the 2 groups." up
Reorder
At the start of the 2nd quarter, ask the experimental group to begin eating the high protein breakfast from the menu. Have the control group continue eating cereal for breakfast.
Move "At the start of the 2nd quarter, ask the experimental group to begin eating the high protein breakfast from the menu. Have the control group continue eating cereal for breakfast." down
Move "At the start of the 2nd quarter, ask the experimental group to begin eating the high protein breakfast from the menu. Have the control group continue eating cereal for breakfast." up
Reorder
Randomly assign the students to either the experimental group or the control group.
Move "Randomly assign the students to either the experimental group or the control group." down
Move "Randomly assign the students to either the experimental group or the control group." up
Question 19 of 20
The average diameter of a healthy male’s aorta, the largest artery in the body, is 36 mm. If 1 meter is equal to 1000 millimeters, what is the average diameter of the human male’s aorta in meters?
Question 20 of 20
In 1978, Janet Parker was a medical photographer working at the University of Birmingham Medical School. The floor below her darkroom studio was a lab where scientists were studying the smallpox virus. That August, she became ill with smallpox and died one month later. At no point before her infection did she have direct contact with contaminated biological samples. To this day, Janet Parker is the last person who has died from smallpox.
Which of the following conclusions does the paragraph support?
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