Skip to main content


Did you know the GED® Science test has a 90% pass rate? You have a very good chance of succeeding if you have a basic understanding of scientific concepts and how they work.

Here’s what you need to know:

  • You’ll need to understand science concepts, know how to read graphs and charts displaying scientific data, and use reasoning to interpret science information.
  • The science test is not a memorization test! For example, you won’t need to memorize the periodic table of elements, but you will need to recognize names and symbols of key elements in answering some questions.
  • Use the free Science Study Guide to start studying. It will help you understand the skills being tested. Log in to start using the study guide.
  • The GED Ready® practice test for Science can help you determine if you are ready to take the official GED® test. Log in to give it a try.

Question Overview

This question asks you to use the data presented in the graph to support a given conclusion about a vaccine and its relationship to chicken pox.

Varicella is a virus that causes the disease chicken pox. Medications are used to treat the symptoms of fever and discomfort associated with chicken pox. In 1995, a varicella vaccine was made available to people in the United States.

The graph shows the number of chicken pox cases reported in four U.S. states from 1991 to 2007.

X-axis labeled year starts with 1991 to 2007 in two-yer increments. Y-axis labeled number of reported cases (in thousands) starts with 0 to 105 in increments of 15. The line begins at 90 in 1991 then dips and rises again several times until it reaches 75 in 1997. The line then falls steadily to approximately 15 in 2007

Which conclusion is supported by the data in the graph?

Which conclusion is supported by the data in the graph?

Explore a variety of Science study materials:

  • Science for the GED® Test


    Print Product


  • Steck-Vaughn GED® Test Preparation Student Print Bundle Science

    Print Product


  • Fast Forward: Your Study Guide for the GED® Science Test

    Digital Product