ข้อสอบ GED Science พร้อมเฉลย สำหรับเตรียมความพร้อมก่อนสอบจริง

1.The tilt of Earth’s rotational axis toward or away from the sun causes:

global warming

daylight savings time

24-hour days

seasons

2.This table describes the 4 trophic levels:

Based on the table, which of the following animals would be classified as a tertiary consumer?

Deer

Anteater

Squirrel

Great white shark

3.What was the mean number of bats in 2020 for the six colonies in the park?

338

304

343

2028

4.What was the median number of bats in 2021 for the six colonies in the park?

304

204

292

380

5.How is energy obtained by primary producers?

Photosynthesis

Glycolysis

The citric acid cycle

Oxidative phosphorylation

6.What interaction between Earth’s systems was most likely responsible for the creation of this landmark?

Erosion of rock from water

Wind abrasion on the soil

Landslides

Tectonic fissures

7.Given these two hypotheses, which of the following is most likely to be true?

Substance A will dissolve faster in Solvent A at higher temperatures

Substance B will dissolve slower in Solvent A at higher temperatures

Substance B will dissolve slower than Substance A in Solvent A, regardless of the temperature of the solution

Substance A and Solvent A will not form a solution at any temperature

8.When a person reaches out and touches a hot pan, the __________ system is triggered and activates the __________ system to move the hand away. Fill in the blanks.

skeletal, muscular

muscular, nervous

nervous, endocrine

nervous, muscular

9.Use the Punnett square to calculate the probability that these two mice will produce an offspring with white fur.

25%

50%

75%

100%

10.Which of the following is the cause of ocean tides?

The gravitational pull of the moon on planet Earth

Varying wind intensity

Density differences in sea water

Movement of tectonic plates

11.Based on the chart above what is the relationship between the Rocky Mountain and Grey wolf?

Mutualism

Competition

Predator-prey

Commensalism

12.A seesaw is an example of what type of simple machine?

A wedge

A pulley

A lever

A lever and pulley

13.DNA can best be compared to:

The person making a smoothie.

The blender in which the smoothie is made.

The recipe for a fruit smoothie.

The fruit used in making a smoothie.

14.What numbers are needed in the blank spaces to balance the chemical equation?

5, 8

24, 8

6, 10

8, 24

15.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/ s^2):

0.15

0.25

0.35

0.45

16.Which of the following conclusions can be inferred from the data depicted in the graph?

The heart rate of the untrained individual was greater than the heart rate of the trained individual throughout the experiment.

The heart rate of the trained individual was greater than the heart rate of the untrained individual throughout the experiment.

The heart rate of the trained individual increased at a faster rate than that of the untrained individual as the work rate increased.

A greater resting heart rate is an indication of an untrained individual.

17.Which of these statements about photosynthesis is true?

6 molecules of carbon dioxide plus 12 molecules of water will produce 2 molecules of sugar plus 6 molecules of oxygen

12 molecules of carbon dioxide plus 12 molecules of water will produce 2 molecules of sugar plus 12 molecules of oxygen

1 molecule of sugar plus 6 molecules of oxygen will produce 6 molecules of water plus 6 molecules of carbon dioxide

6 molecules of carbon dioxide plus 6 molecules of water will produce 6 molecules of sugar plus 6 molecules of oxygen

18.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?

0.0036

0.036

0.36

36,000

19.After Mia presented the results to her class, her teacher told her that she made an error in designing her experiment. What was the most likely error?

She should have had another group that did 15 minutes of meditation.

She should not have stopped the experiment after 14 days.

She should not have used a survey to measure happiness levels.

She should have had a control group that did not do meditation.

20.Which sentence from the paragraph supports the idea that specific farming techniques used by humans are responsible for the environmental damage caused by unsustainable agriculture?

“Sustainable agriculture is the act of farming using principles of ecology, the study of relationships between organisms and their environment.”

“Unsustainable agriculture involves practices that can cause long-term damage to soil over time.”

“This includes too much tillage that can lead to erosion, as well as irrigation without adequate drainage (leading to salinization).”

“Long-term experiments have provided some of the best data on how various practices affect soil properties essential to sustainability.”

21.Which is an independent variable and which is a dependent variable in this experiment?

An independent variable is the skin type; a dependent variable is the amount of UV light.

An independent variable is the redness; a dependent variable is the amount of UV light.

An independent variable is the amount of UV light; a dependent variable is the skin type.

An independent variable is the skin type; a dependent variable is the redness.

23.Is the hypothesis supported by the data in the table?

The hypothesis is supported because, as a percentage, more energy is derived from renewable resources annually and less CO² emissions accrue annually.

The hypothesis is supported because, as a percentage, more energy is derived from renewable resources annually and more CO² emissions accrue annually.

The hypothesis is not supported because, as a percentage, less energy is derived from renewable resources annually and less CO² emissions accrue annually.

The hypothesis is not supported because, as a percentage, more energy is derived from renewable resources annually and more CO² emissions accrue annually.

24.The table provided suggests that decreasing the percentage of coal used for energy annually correlates with an increase in CO2 emissions. Given that the processing of coal is the primary contributor to CO2 emissions in the US, which of the following statements may explain the trend shown in the data table?

The table provided suggests that decreasing the percentage of coal used for energy annually correlates with an increase in CO2 emissions. Given that the processing of coal is the primary contributor to CO2 emissions in the US, which of the following statements may explain the trend shown in the data table?

The processing of coal must not be the primary contributor to coal emissions in the US.

Renewable energy resources such as wind, solar, and water must emit more CO² than the processing of coal.

25.Based on the information in this cladogram, which of these statements is true?

Watermelons are segmentedv

Lemons evolved from oranges

Tomatoes and oranges share a common ancestor

Watermelons and oranges are more closely related than tomatoes and watermelons

26.What was the error in the design of their experiment?

What was the error in the design of their experiment?

The coffee house should have used a set amount of time for brewing.

The coffee house should have brewed at least 4 batches.

The coffee house should have tried several different types of gases.

27.Two objects on Earth are dropped from the top of a building that is 70 meters high. Object A has a mass of 12 g and object B has a mass of 6 kg. Assuming there is no air resistance, which object will hit the ground first?

Object A

Object B

Both objects will hit the ground at the same time

There is not enough information to determine which object will hit the ground first

28.A lake contains many fish that local bears depend on as their major source of food. What would be the consequence of an algal bloom killing off a large portion of the fish population?

The number of bears in the area would increase

The number of bears in the area would decrease

The number of bears in the area would be unaffected

The bears would go into hibernation

29.Based on this equation, in order to sustain population growth and maintain environmental impact, what factor must change at a rate equal to the rate of population growth?

An increase in technology

A decrease in technology

An increase in energy demand

None of the above

30.Two mice mate and produce offspring. Both of the mice have the genotype (Gg) which is the phenotype for grey fur color. Use a Punnett square to calculate the probability that these two mice will produce an offspring with white fur (gg).

25%

50%

75%

0%

31.Which of the following describes the feedback method used by a healthy human to regulate body temperature first in warm surroundings and then in cold surroundings?

When body temperature is too cold, the body starts sweating in order to cool down; when body temperature is too hot, the body starts shivering in order to warm up

When body temperature is too high, the body starts shivering in order to warm up; when body temperature becomes too low, the body starts sweating in order to cool down

When body temperature is too cold, the body starts shivering in order to warm up; when body temperature is too hot, the body starts sweating in order to cool down

When body temperature is too high, the body starts to sweat in order to cool; when the body temperature becomes too low, the body starts shivering in order to warm up