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100
What force keeps the planets in orbit around the sun?
What is gravity?
100
How long does it take for the Earth to make one complete rotation on it's axis?
What is 24 hours?
100
How many planets are there?
What is eight?
100
What is the amount of time that has gone by when the Moon makes one orbit around the Earth?
What is one month?
100
Which planets are the Outer Planets?
What is Jupiter, Saturn, Uranus, and Neptune?
200
Earth's orbit is _____ around the sun.
What is elliptical?
200
What is the term for one complete orbit of the Earth around the Sun called?
What is revolution?
200
The planet that is first from the Sun is?
What is the Mercury?
200
Which planet is the smallest?
What is Mercury?
200
Energy is produced within a star's core by what?
What is nuclear fusion?
300
The blue arrows represent:
What is the Earth's revolution around the Sun?
300
How many days does it take for the Earth to revolve around the Sun?
What is 365 days?
300
What is the spinning of the Earth on its axis called?
What is rotation?
300
What are the tides caused by?
What is the gravitational pull of the Moon?
300
What are the main components of a star?
What are Hydrogen and Helium?
400
What side of the Moon do we always see?
What is the SAME side?
400
What is the difference between Latitude and Longitude?
What is latitude measures north-south distance from the Equator, while longitude measures east-west from the Prime Meridian?
400
What does the Earth's rotation cause?
What is day and night?
400
What does a topographical map show?
What is elevation and landforms?
400
Why do the seasons change?
What is the Earth rotates around the Sun at a tilt?
500
What is the main factor that determines the phases of the Moon?
What is the position of the Moon in relation to the Earth and Sun?
500
This picture shows:
What is the Earth's rotation?
500
This celestial object is at the center of our solar system.
What is the Sun?
500
What is a major difference between the inner and outer planets of our solar system?
What is the inner planets are small and terrestrial and the outer planets are larger and mostly gaseous?
500
During which phase of the Moon is it is completely illuminated by the Sun?
What is a Full Moon?