Section Three Science

Here you have the best Test Prep GED Section 3 Science practice exam questions

You have 75 total questions to study from
Each page has 5 questions, making a total of 15 pages
You can navigate through the pages using the buttons at the bottom
This questions were last updated on October 25, 2025
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Question 1 of 75

In an acid base reaction, an acid reacts with a base to produce water and a salt. The pH scale can be used to describe the acidity of a liquid. Look at the diagram below. Which two liquids could undergo an acid base reaction?
Exam GED Section 3 Science: Question 1 - Image 1

Exam GED Section 3 Science: Question 1 - Image 1

bleach and ammonia

lye and ammonia

blood and saliva

bleach and vinegar

stomach acid and beer

Correct Answer: D

Question 2 of 75

Which of the following is NOT true about gravity?

The more massive two objects are, the greater the gravitational force between them.

Gravitational force between two objects depends only on the mass of the larger object.

Gravitational force between two objects depends on the distance between them.

People can jump higher on the moon than on Earth because the gravitational force between a person and the moon is lower than the gravitational force between a person and the Earth.

A gravitational force exists between the moon and the sun.

Correct Answer: B

Question 3 of 75

Change of phase is a process whereby matter changes form (solid, liquid, gas). Which one of the following constitutes a phase change?

condensation of water vapor

photosynthesis

digestion of food

dry-cleaning

exhaling

Correct Answer: A

Question 4 of 75

Two negatively charged spheres -

repel each other.

attract each other.

neither attract nor repel each other.

can either attract or repel each other depending on their position.

attract each other only when the distance between them is small.

Correct Answer: A

Question 5 of 75

Which statement about energy and/or matter is incorrect?

Matter and energy can’t be destroyed.

Matter and energy can’t be created.

All matter tends toward more disordered states.

Energy can be stored and transferred.

Heat energy is composed of heat atoms.

Correct Answer: E