Earth, Moon and Sun Exploring Space The Solar System Galaxies and Universe
100
What is Earth's rotation on its axis
24 hours
100
What is the space shuttle
can be used many times to carry astronauts into space
100
What is largest gas giant
Jupiter
100
What is surface temperature
what determines whether a protostar becomes a star
200
What is one complete revolution of Earth around the Sun
one year
200
Who is the first human in space
Yuri Gararin
200
What is heliocentric system
sun is the center of the system of planets
200
What is astronomers prediction of the existence and orbit of Neptune
Neptunes gravitational effect on the orbit of Uranus
300
What is the amount of the lighted side of the moon you see is the same
first and third quarter phase
300
Who in 1900s, developed experimental rockets
Robert Gargarin
300
What is photosphere
layer of sun you look at
300
What is parallax
used to determine a star's distance from Earth
400
What is the reason you are less likely to see a solar eclipse than a lunar eclipse
the moon's umbra only covers a small area on Earth's surface
400
What is a shuttle's payload bay
carry satellites into orbit
400
What is the chromosphere and corona
layers of sun you see during solar eclipse
400
What is a star is born
nuclear fusion starts
500
What is a neap tide
When the sun's pull is at right angles to the moon's
500
What is extreme temperatures in space
space is a vacuum
500
What do outer planets have in common
larger than earth and made mainly on hydrogen and helium
500
What is thrust
first stage of a multistage rocket






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