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READING

The Blue Planet

LEARN STEP BY STEP

Neptune is the eighth planet from the Sun. It is the farthest planet from the Sun at an average distance of 4.5
billion kilometres. Uranus is the only neighbour of this planet. Neptune is one of the outer planets in the solar
system. It’s smaller than Uranus, Saturn and Jupiter. Neptune has an icy surface like Uranus. It is a dark and
windy planet. Its winds are stronger than the winds on our planet. Neptune’s average surface temperature is
around -214 degrees Celsius. This planet has 14 known moons. One of them is called Triton which is bigger than
the other thirteen. Neptune has a powerful magnetic field. It is 27 times stronger than Earth’s magnetic field.
Neptune is a blue planet because of a specific gas called methane. Its atmosphere consists of hydrogen, helium,
and methane. A day on Neptune is less than a day on Earth. It lasts for only 16 hours. Galileo Galilei observed
Neptune in 1613, but he thought that he found a star. Urbain Le Verrier, John Couch Adams, and Johann Galle
discovered the blue planet in 1846 by using mathematical predictions. Voyager 2 is the only spacecraft that
reached Neptune. Neptune is the only planet that isn’t visible to the naked eye.

A. Read the text. Then mark the sentences as T for True, F for False and NG for Not Given.
1. Uranus is closer to the Sun than Neptune. T / F / NG
2. Neptune is larger than Saturn. T / F / NG
3. It is possible to see Neptune without a telescope. T / F / NG
4. Neptune is colder than Uranus. T / F / NG
5. It has more than ten satellites. T / F / NG

B. Which of the following questions have answers in the text? Tick.
1. How far is Neptune from our home planet? __________
2. What is Neptune’s surface like? __________
3. Why is Neptune blue? __________

4. How many hours are there in a day on Neptune? __________
5. Why did Galileo Galilei observe Neptune? __________

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