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Astronomy Quiz - Practice
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What % of the mass of the Solar System is contained within the Sun?
About 99.8% to 99.9%
What causes sunrise and sunsets?
when the earth spins where it rises from the east and sets in the west
Rank the following from the smallest to biggest. (Galaxy, star, universe, moon, planet)
Moon, Planet,Star, Galaxy, Universe
What is a light year?
How a distance light travels in one year.
What is the name of the galaxy where we live?
Milky Way
How old is the solar system?
4.5 billion years
What is the sun mostly made of?
Hydrogen and Helium
Which country is tropical? Canada. Japan. Argentina.Colombia
Colombia
What is the name of the nearest star to the Sun?
Proxima Centauri
What holds and keeps the Solar System together?
Gravity of the sun
what season is it during December in the northern hemisphere?
Winter
which planet has the most days in a year?
Neptune
nuclear fusion is when ______
the nuclei of atoms fuse together due to immense gravity
about how far across is the Milky Way?
about 100,000 light years
Approximately how many stars are in our galaxy?
200 billion
how many planets are in the solar system?
8
a light year is a measurement of _________
distance
which planet spins the fastest?
Jupiter
which planet has a huge storm called the Great Red Spot?
Jupiter
This moon of Saturn has its own atmosphere
Titan
a scientist who studies space and the universe is an _____
astronomer
what can stars do that planets cannot do?
stars can produce their own light
Objects with more _____?_, have more gravity
mass
What imaginary line is located 23.5 degrees south of the Equator?
TROPIC OF Capricorn
What imaginary line is located 23.5 degrees north of the equator?
Tropic of Cancer
This is why the Sun appears to rise in the ______ and sunsets are in the ____
EAST. WEST.
The Earth spins in a _____ direction.
counter -clockwise.
The spinning on its axis is called _______
rotation.
While the Earth revolves around the Sun, it is also _______
Spinning
The earth revolves around the Sun in a ______ direction
counter-clockwise
It takes Earth ________ days to complete one revolution
365 days
what speed is closest to light speed?
300,000 km/secs
What is the main cause for the seasons on Earth?
The Earth's tilt