Prepare for the GED Science Test with Sample Questions - dummies

Prepare for the GED Science Test with Sample Questions

By Murray Shukyn, Dale E. Shuttleworth, Achim K. Krull

If you really want to be prepared for test day, give these Science GED questions a try. Just remember to pay close attention to the questions and what they are asking.

Sample questions

Paternity Testing

DNA has become part of everyone’s vocabulary, and several crime shows on television use it as a key plot element. DNA has put criminals in jail and freed others. It is used as proof in trials and is an important dramatic tool on many television dramas and talk shows.

Another use for DNA is not as dramatic. Because a child inherits the DNA of his or her parents, DNA testing can prove paternity. This is an example of a practical use for a scientific discovery.

  1. Paternity testing compares the DNA of the child with the DNA of the ___________.

  2. Why is there generally no need for maternity testing when a child is born?

    • (A) A mother’s DNA is always the same as her children’s.

    • (B) Fathers are liable for support.

    • (C) Mothers give birth to their own children.

    • (D) It makes a better drama.

Space Stuff

Each space flight carries items authorized by NASA, but the quirky little items carried in astronauts’ pockets are what catch the interest of collectors. Auction sales have been brisk for material carried aboard various space flights.

On the second manned Mercury flight, Gus Grissom carried two rolls of dimes. He was planning to give these to the children of his friends after he returned to Earth. If you carried two rolls of dimes worth ten dollars around Earth, they would still add up to ten dollars. When Gus Grissom returned to Earth, however, these dimes became space mementos, each worth many times its face value.

Although NASA does not permit the sale of items carried aboard space missions, many items have found their way to market. Eleven Apollo 16 stamps, autographed by the astronauts, sold for $27,000 at auction, but the corned beef sandwich that John Young offered to Gus Grissom never returned to Earth.

  1. On which mission did Gus Grissom carry rolls of dimes?

    • (A) first

    • (B) second

    • (C) third

    • (D) fourth

  2. What happened to John Young’s corned beef sandwich?

    • (A) It was sold.

    • (B) It was left on the moon.

    • (C) It was eaten.

    • (D) Not enough information is given.

  3. What is so special about items carried in an astronaut’s pocket?

    • (A) Weightlessness changes their composition.

    • (B) They have been in space.

    • (C) Lunar radiation affects them.

    • (D) The pockets are made of a special material.

  4. What would NASA authorize astronauts to carry into space?

    • (A) articles that might become valuable souvenirs

    • (B) extra oxygen

    • (C) documents

    • (D) tools for experiments

  5. Why would autographed stamps be worth so much money?

    • (A) They are rare when personally autographed.

    • (B) Stamps always become valuable.

    • (C) People collect autographs.

    • (D) Astronauts don’t give autographs.

  6. What makes stamps a safer choice for an unauthorized space souvenir than coins?

    • (A) There are more stamp collectors than coin collectors.

    • (B) They are easier to autograph.

    • (C) They weigh less.

    • (D) All of the above.

Answers and Explanations

Paternity Testing

  1. father. Paternity refers to the male half of a couple. If mothers were tested, it would be called maternity testing.

  2. C. Mothers give birth to their own children. Under most circumstances, no one ever has any doubt on the day of the birth about who actually gave birth to a child. The mother is always obvious on that day. If the child were separated from the mother after birth, maternity testing could be an issue. But the question specifically asks about the day the baby is born.

Space Stuff

  1. B. second. According to the passage, Grissom carried the dimes on the second voyage. Anything that has traveled in space has added value as a collectible, which is why he carried this unusual item.

  2. D. Not enough information is given. The passage tells you that the sandwich didn’t return to Earth but nothing about what specifically happened to it. The other answer choices are speculation. On the test, you need to stick to the information you’re given.

  3. B. They have been in space. Because being in space is a rare occurrence, anything that has been there takes on a certain importance. Collectors want objects that are rare and about to get rarer.

  4. D. tools for experiments. The purpose of space flights is scientific research, so you’re looking for an item associated with carrying out experiments or performing the daily routines of space travel. None of the other choices fits the bill.

  5. A. They are rare when personally autographed. Anything autographed by a famous person is valuable. When the object autographed is also available in limited quantities, it becomes more valuable still.

  6. C. They weigh less. For safety, astronauts must account for every ounce of mass in the space capsule. Adding a lot of extra weight can be dangerous. Stamps take up less space and weigh less than coins so are a better choice for illicit souvenirs.