The Planets and Measuring Space Earth belongs to
The Planets and Measuring Space
Earth belongs to the terrestrial planets
The speed of light is commonly used to measure distances in the solar system
Which planet is after Saturn? § Uranus
Which terrestrial planet has a day that is over two Earth months long? § Mercury
Why is Venus sometimes called Earth’s twin? § It has nearly the same size and density.
Why is Uranus considered a gas giant? § It has a deep massive atmosphere.
Which planet is the largest? § Jupiter
Why are the inner planets called terrestrial planets? § They resemble Earth
What is the most useful unit for measuring distances in the solar system? § Astronomical units
What is an astronomical unit? § The distance between the sun and the Earth.
Describe the inner planets. § They are small, dense, and rocky.
How are gas giants different from terrestrial planets? § They are made mostly of gases.
§ § § What planets make up the outer solar system? Jupiter Saturn Uranus Neptune Pluto
What planets make up the inner solar system? § § Mercury Venus Earth Mars
Which group of planets are hard and rocky? § Terrestrial planets
What is a prograde rotation? § A planet or moon that has a counter -clockwise spin.
What is retrograde rotation? § The sun appears to rise in the west and set in the east.
Which outer planet is the only one that is dense and rocky? § Pluto
Which planet has bright rings? § Saturn
On which planet would you find the Great Red Spot? § Jupiter
Which planet has belts of visible clouds? § Neptune
Which planet is tipped over on it’s side? § Uranus
What is the speed of light? § 300, 000 km per second § How far can light travel in 15 minutes? – 300, 000 (speed of light) x 60 (seconds in a minute) x 15 (number of minutes listed) = 270, 000 km.
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