Astronomy chapter 7 quizlet

  • How many days does all planets take to complete one revolution?

    Which planet has the longest orbit? Pluto is the farthest planet from the Sun, and has the longest orbit.
    On Pluto, a year lasts for 248.
    5) Earth years.
    Pluto's orbital path is unusual because it is elongated..

  • How old is our solar system and everything in it?

    Age and Origin of the Solar System.
    The age of the solar system, derived from the study of meteorites (thought to be the oldest accessible material around) is near 5 billion years; that of the Earth is taken as 4.6 billion years.
    The oldest rocks on Earth are dated as 3.8 billion years..

  • What is happening when two plates are smashing into one another?

    Plates Collide When two plates carrying continents collide, the continental crust buckles and rocks pile up, creating towering mountain ranges..

  • Which planet has the longest orbit?

    Which planet has the longest orbit? Pluto is the farthest planet from the Sun, and has the longest orbit.
    On Pluto, a year lasts for 248.
    5) Earth years.
    Pluto's orbital path is unusual because it is elongated..

  • Which planet has the longest time?

    Detailed Solution.
    Venus which completes one rotation every 243 Earth days has the longest day of any planet in our solar system..

  • Which planet has the longest year?

    As such, a year on Neptune is the longest of any planet, lasting the equivalent of 164.8 years (or 60,182 Earth days)..

  • Why could the four giant planets collect massive gaseous atmospheres whereas the terrestrial planets could not?

    The inner planets are much smaller than the outer planets and because of this have relatively low gravity and were not able to attract large amounts of gas to their atmospheres..

  • Why did Carl Sagan say that we are all star stuff quizlet?

    What did Carl Sagan mean when he said that we are all "star stuff"? that the carbon, oxygen, and many elements essential to life were created by nucleosynthesis in stellar cores..

  • Why is Mercury hotter than the moon?

    Because it is so close to the sun and has no atmosphere, Mercury has the greatest variation in surface temperature of all planets in our solar system.
    On the daylight side, the side of Mercury facing the sun, temperatures reach 500 degrees Celsius or 900 degrees Fahrenheit, hot enough to melt tin..

  • Why is the sky blue chapter 7?

    Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air.
    Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere.
    Blue is scattered more than other colors because it travels as shorter, smaller waves..

  • We believe the Moon was formed molten and then cooled.
    Because the oldest rocks are about 4.3 billion years old, the formation of the Moon must have occurred around 4.5 billion years ago.
Rating 5.0 (1) many moons and rings -Pluto is unlike either the inner or outer planets.
Motion of Large Bodies.
-all large bodies in the solar system orbit in the sameĀ 

How many schools took part in the Grade 7 astronomy quiz?

Eighty nine schools in the Northern Cape and Western Cape provinces took part in the Grade 7 Astronomy Quiz (AstroQuiz) as it marked its tenth year anniversary in 2015. The schools included 31 out of the 50 invited to participate in the Northern Cape and 63 that registered from the Western Cape.


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