Study

Science

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  • Fill in the blanks: The ______ in Neptune's atmosphere is part of what makes it look blue.
    methane
  • What did people invent to observe space?
    Large-scale telescopes, radio telescopes and space telescopes
  • When did a probe of Former Soviet Union reach Venus?
    1975
  • In which year, astronauts from United States reached the Moon for the first time.
    1969
  • What is the rotation time for each cycle?
    A day
  • Please fill in the blanks: When a rocket is launched, it ejects a large amount of gases_____. This generates a thrust that pushes the rocket_____.
    downwards, upwards
  • How many Solar eclipses are there? What are they?
    3, partial solar eclipse, total solar eclipse and annular solar eclipse
  • What does Earth spins around?
    An imaginary axis
  • The Earth's axis go through where?
    North Pole and South Pole
  • What is called a revolution?
    It is the movement that Earth moves around Sun
  • What can we see when we go stargazing?
    Auroras Meteor Showers Comets
  • Who is the first astronaut to go on space?
    Yang Liwei
  • How many time zones are there?
    24
  • When did the Former Soviet Union launch the first artifical satellite?
    1957
  • In 1961, who became the first astronaut in history?
    Yuri Gagarin from Soviet Union
  • When was NASA established?
    1958
  • Which planet has the largest number of halos? Are they obvious?
    Uranus, Not obvious
  • How many Lunar eclipses are there? What are they?
    2, total lunar eclipse and partial Lunar eclipse
  • How many days does a cycle of revolution requires?
    365.25days
  • What is the spinning of Earth called?
    rotation
  • The Earth's axis is tilted. How many degrees does it tilt to the right?
    23.5
  • What does space lacks?
    Air, gravity and water
  • What makes Earth suitable for human beings to live on?
    Atmoepheric protection, sufficient water, stable gasous ratio and nutrients for plants in the soil
  • What does revolution cause?
    Different seasons