Space Science Practice Tests

These questions are written by our Science guru. Each question has five answer choices. Choose the best answer for each question.

1. MEASURES OF DISTANCE USED IN ASTRONOMYQuestion 1: If the sun were to disappear, for approximately how much longer would we be able to see it?
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Question 1 of 16

2. Question 2: Which of the following best illustrates the concept of parallax?
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Question 2 of 16

3. MOON AND SUN ON OCEAN TIDESQuestion 1: Tides are mostly caused by the
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4. Question 2: Earth’s high tides occur in oceans
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5. Which planet is the closest to Earth?
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6. Question 2: Which of the following is true?
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7. THE SUNQuestion 1: The sun is a medium-sized star. But it’s pretty enormous compared to Earth. How many Earths could fit inside the sun?
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8. Question 2: Nuclear fusion in the sun’s core converts
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9. TYPES OF STARSQuestion 1: From smallest to largest, which is the correct order of the following stars? (In terms of volume)
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10. Question 2: A measurement of a star’s brightness is called
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11. MILKY WAYQuestion 1: About how many stars can be found in the Milky Way?
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12. Question 2: When viewed from Earth, on which constellation does the center of the Milk Way sit?
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13. THE INNER PLANETS OF OUR SOLAR SYSTEMQuestion 1: What is the correct order of the inner planets (beginning farthest from the sun)?
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14. Question 2: Which of the following is true of Mercury?
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15. THE OUTER PLANETS OF OUR SOLAR SYSTEMQuestion 1: What is the largest planet in the Solar System?
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16. Question 2: Which of the following is NOT true of the outer planets?
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Question 16 of 16


 


Keep Calm and Just Graduate!

These practice tests are part of our GED online prep, click here to read how it works.

The planet on which we live, Planet Earth, is constantly moving and changing, and if you think of our Earth in universal terms rather than local or global terms, you will understand how all things in nature are interconnected.  There are food chains, water cycles, or rock cycles, and you will learn that if you change a certain part of any cycle or chain, the results will be altered as well.

We need to learn to see things into the right perspective. To give you a few examples of all the things we (think we) know, or maybe suspect, about the universe we are living in, just know that our Earth is part of a solar system that contains the Sun and nine planets. Our Planet Earth is actually not even considered a big planet within our solar system, and Jupiter is much larger than our planet. In fact, all our solar system’s planets will fit within Jupiter’s size. Our relatively small solar system is located on an outer arm of the Milky Way Galaxy, and within our galaxy, there are some 200 billion stars, and this would imply that there are just as many solar systems, while in the entire Universe, we think there are a few billion galaxies….

Disclaimer This practice test is not related to the Official GED Practice Test™ produced and distributed by the American Council on Education (ACE) and the GED Testing Service. ACE and GED Testing Service LLC have not approved, authorized, endorsed, been involved in the development of, or licensed the substantive content of this practice test.