Science
GED Science Practice Test 4
Forty new multiple-choice questions, none repeated from earlier tests. This set reaches into areas that are easy to skip in review: evidence for evolution, how body systems depend on each other, work and simple machines, natural hazards, and the strengths and limits of scientific models. Use the guidance below to find your weakest area and fix it.
Question 1 of 40
0 answered
A museum display compares the front limbs of a human, a bat, a whale and a cat. Each limb has the same set of bones in the same order, even though the limbs are used for grasping, flying, swimming and walking. Which explanation is best supported by this evidence?
Find your weakest content area
After you finish, sort every miss and every guess into four groups: life science, physical science, earth and space science, and scientific practices. Then count each group. Because the test has 14 life, 14 physical, 6 earth and 6 practices questions, compare the share you missed in each group, not just the raw count. Missing 3 of 6 earth questions is a bigger gap than missing 3 of 14 life questions.
Your weakest area is the group with the highest share of misses. Spend your next study session on that topic’s study guide and drill before you take another full test. One focused session on a weak area usually helps more than another full test right away.
Questions about models and diagrams
Several items here describe a model in words: a lamp and two balls for the Moon’s phases, a drawing of the water cycle, or a formula that predicts how bacteria grow. For any model, ask two questions. What does it show well? What does it leave out or get wrong, such as size, distance, or exact amounts?
When a formula is given, plug in the numbers in the right order and check the units. When a model’s predictions stop matching new data, the right response is to revise the model, not to ignore the data. Both ideas appear often on the real test.
Frequently asked questions
- What if my score on Practice Test 4 is lower than on earlier tests?
- This set leans on topics that earlier tests covered less, so a dip often points to a specific gap rather than lost progress. Check which content area the misses came from and study that area first.
- Do I need to memorize hurricane categories or planet data for GED Science?
- No. When a question depends on a scale or a table, the numbers are given. Your job is to read them carefully and apply them to the situation in the question.
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