Mysterious Dark Matter Reading Answer

In the article we have the Mysterious Dark Matter reading answers with answers and explanations. This topic has 14 questions in 3 different types namely - 8 questions as sentence completion, 5 questions as true, false or not given and 1 question as multiple choice question form.

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Table of content:

• Solution for Mysterious Dark Matter
• Mysterious Dark Matter IELTS Reading Practice test
• Passage
• Questions
• Answers with explanation

Solution for Mysterious Dark Matter

Below, we have given the answers for Mysterious Dark Matter reading answers in the table form.

Answer Table

27. Dark matter	30. Plasma state	33. Evidence	36. False	39. Not given
28. Ruled out	31. Strong interaction	34. Larger supercomputing	37. False	40. A
29. Abundant	32. Neutral charge	35. True	38. False

Mysterious Dark Matter IELTS Reading Practice Test - Exam Review

Here we have provided Mysterious Dark Matter IELTS reading answers. Use this article as a sample one while practicing for your exam, this will definitely help you to be excellent in your major exam with band scores. Read the given passage to answer the questions.

Passage

Below, we have given the Mysterious Dark Matter reading answers with answers and location. Read the passage thoroughly and answer your questions. 

Mysterious Dark Matter reading answers

Mysterious Dark Matter May Not Always Have Been Dark

1. Dark matter particles may have interacted extensively with normal matter long ago, when the universe was very hot, a new study suggests. The nature of dark matter is currently one of the greatest mysteries in science. The invisible substance — which is detectable via its gravitational influence on "normal" matter - is thought to make up five-sixths of all matter in the universe.
2. Astronomers began suspecting the existence of dark matter when they noticed the cosmos seemed to possess more mass than stars could account for. For example, stars circle the center of the Milky Way so fast that they should overcome the gravitational pull of the galaxy's core and zoom into the intergalactic void. Most scientists think dark matter provides the gravity that helps hold these stars back. Astronomers know more about what dark matter is not than what it actually is.
3. Scientists have mostly ruled out all known ordinary materials as candidates for dark matter. The consensus so far is that this missing mass is made up of new species of particles that interact only very weakly with ordinary matter. One potential clue about the nature of dark matter has to do with the fact that it's five times more abundant than normal matter, researchers said.
4. "This may seem a lot, and it is, but if dark and ordinary matter were generated in a completely independent way, then this number is puzzling," said study co-author Pavlos Vranas, a particle physicist at Lawrence Livermore National Laboratory in Livermore, California. "Instead of five, it could have been a million or a billion. Why five?" The researchers suggest a possible solution to this puzzle: Dark matter particles once interacted often with normal matter, even though they barely do so now. "This may have happened in the early universe, when the temperature was very high — so high that both ordinary and dark matter were 'melted' in a plasma state made up of their ingredients".
5. The protons and neutrons making up atomic nuclei are themselves each made up of a trio of particles known as quarks. The researchers suggest dark matter is also made of a composite "stealth" particle, which is composed of a quartet of component particles and is difficult to detect (like a stealth airplane). The scientists' supercomputer simulations suggest these composite particles may have masses ranging up to more than 200 billion electron-volts, which is about 213 times a proton's mass. Quarks each possess fractional electrical charges of positive or negative one-third or two-thirds. In protons, these add up to a positive charge, while in neutrons, the result is a neutral charge. Quarks are confined within protons and neutrons by the so-called "strong interaction."
6. The researchers suggest that the component particles making up stealth dark matter particles each have a fractional charge of positive or negative one-half, held together by a "dark form" of the strong interaction. Stealth dark matter particles themselves would only have a neutral charge, leading them to interact very weakly at best with ordinary matter, light, electric fields and magnetic fields. The researchers suggest that at the extremely high temperatures seen in the newborn universe, the electrically charged components of stealth dark matter particles could have interacted with ordinary matter. However, once the universe cooled, a new, powerful and as yet unknown force might have bound these component particles together tightly to form electrically neutral composites. Stealth dark matter particles should be stable — not decaying over eons, if at all, much like protons. However, the researchers suggest the components making up stealth dark matter particles can form different unstable composites that decay shortly after their creation. "For example, one could have composite particles made out of just two component particles," Vranas said.
7. These unstable particles might have masses of about 100 billion electron-volts or more, and could be created by particle accelerators such as the Large Hadron Collider (LHC) beneath the France-Switzerland border. They could also have an electric charge and be visible to particle detectors, Vranas said. Experiments at the LHC, or sensors designed to spot rare instances of dark matter colliding with ordinary matter, "may soon find evidence of, or rule out, this new stealth dark matter theory," Vranas said in a statement. If stealth dark matter exists, future research can investigate whether there are any effects it might have on the cosmos.
8. "Are there any signals in the sky that telescopes may find?" Vranas said. "In order to answer these questions, our calculations will require larger supercomputing resources. Fortunately, supercomputing development is progressing fast towards higher computational speeds." The scientists, the Lattice Strong Dynamics Collaboration, will detail their findings in an upcoming issue of the journal Physical Review Letters.

Questions

Questions 27-34

• Complete the sentences below.
• Write NO MORE THAN TWO WORDS from the passage for each answer.
• Write your answers in boxes 27-34 on your answer sheet.

27. One of the greatest mysteries in science is the nature of the.
28. All known material have been mostly  as candidates for dark matter.
29. Dark matter is a lot more  than normal matter.
30. Due to high temperature, both ordinary and dark matter were 'melted' in a.
31. It is confirmed that quarks are within protons and neutrons by.
32. It is suggested that stealth dark matter particle would only have a.
33. Experiments at the LHC may soon find  of the new stealth dark matter theory.
34. To answer questions we require  resources.

Questions 35-39

• Do the following statements agree with the information given in Reading Passage 3?
• In boxes 35–39 on your answer sheet, write
• TRUE   if the statement agrees with the information
• FALSE  if the statement contradicts the information
• NOT GIVEN  if there is no information on this

35. The nature of dark matter is a mystery.                      
36. It is likely that dark matter consists of ordinary materials.                      
37. Quarks have neither positive nor negative charge.                       
38. Protons are not stable.                       
39. Dark matter has a serious impact on the cosmos.                      

Question 40

• Choose the correct letter, A, B, C or D.

40. Passage 3 is

1. A scientific article
2. A sci-fi article
3. A short sketch
4. An article from a magazine

Answers for Mysterious Dark Matter with Explanation

We have given Mysterious Dark Matter reading answers with explanations, this section will help you to rectify your mistakes in your answering process.

27. Answer: Dark matter

Explanation: “The nature of dark matter is currently one of the greatest mysteries in science”. With this line it is clear that the nature of dark matter is currently one of the greatest mysteries in science. Hence the given answer is located in the 2-3 lines of paragraph A.  

28. Answer: Ruled out

Explanation: “Scientists have mostly ruled out all known ordinary materials as candidates for dark matter”. With this line it is clear that all known material have been mostly ruled out as candidates for dark matter. Hence the given answer is located in the first 2 lines of paragraph C. 

29. Answer: Abundant

Explanation: “One potential clue about the nature of dark matter has to do with the fact that it's five times more abundant than normal matter, researchers said”. With this line it is clear that dark matter is a lot more abundant than normal matter  . Hence the given answer is located in the last 3 lines of paragraph C. 

30. Answer: Plasma state

Explanation: "This may have happened in the early universe, when the temperature was very high — so high that both ordinary and dark matter were 'melted' in a plasma state made up of their ingredients". With this line it is clear that due to high temperature, both ordinary and dark matter were 'melted' in a plasma state. Hence the given answer is located in the last 3 lines of paragraph D. 

31. Answer: Strong interaction

Explanation: “Quarks are confined within protons and neutrons by the so-called "strong interaction”. With this line it is clear that quarks are confined within protons and neutrons by strong interaction. Hence the given answer is located in the last line of paragraph E. 

32. Answer: Neutral charge

Explanation:  “Stealth dark matter particles themselves would only have a neutral charge”. With this line it is clear that it is suggested that stealth dark matter particle would only have a neutral charge. Hence the given answer is located in the 3-4 lines of paragraph F. 

33. Answer: Evidence

Explanation: “Experiments at the LHC, or sensors designed to spot rare instances of dark matter colliding with ordinary matter, "may soon find evidence of, or rule out, this new stealth dark matter theory,". With this line it is clear that experiments at the LHC may soon find evidence of the new stealth dark matter theory. Hence the given answer is located in the 4-7 lines of paragraph G. 

34. Answer: Larger supercomputing

Explanation: "Are there any signals in the sky that telescopes may find?" Vranas said. "In order to answer these questions, our calculations will require larger supercomputing resources”. With this line it is clear that to answer these questions our calculations will require larger supercomputing resources. Hence the given answer is located in the first 3 lines of paragraph H. 

35. Answer: True

Explanation:  “The nature of dark matter is currently one of the greatest mysteries in science”. With this line it is clear that the nature of dark mystery. Hence the given answer is located in the 2-3 lines of paragraph A.

36. Answer: False

Explanation: “Scientists have mostly ruled out all known ordinary materials as candidates for dark matter. The consensus so far is that this missing mass is made up of new species of particles that interact only very weakly with ordinary matter”. With this line it is clear that scientists have mostly ruled out all known ordinary materials as candidates for dark matter. Hence the given answer is located in the first 3 lines of paragraph C. 

37. Answer: False

Explanation: “Quarks each possess fractional electrical charges of positive or negative one-third or two-thirds”. With this line it is clear that Quarks have positive or negative one-third or two-thirds. Hence the given answer is located in the 7-8 lines of paragraph E. 

38. Answer: False

Explanation:  “In protons, these add up to a positive charge, while in neutrons, the result is a neutral charge”. With this line it is clear that protons are stable. Hence the given answer is located in the last 2 lines of paragraph E. 

39. Answer: Not given

40. Answer: A

Explanation: “Scientists have mostly ruled out all known ordinary materials as candidates for dark matter. The consensus so far is that this missing mass is made up of new species of particles that interact only very weakly with ordinary matter. One potential clue about the nature of dark matter has to do with the fact that it's five times more abundant than normal matter, researchers said”. Hence the given answer is located in paragraph C and this passage describes what scientists say. 

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