|The planets outside the asteroid belt are the __________ ______________.
|The earth's path around the sun is its ___________.
|The __________ is an imaginary line that runs through both poles of the earth.
|A _______ is a small planet-like body that orbits a planet.
|A _______ is a huge ball of super heated gas.
|The star at the center of our solar system is the ______.
|A ___________ is a large object that orbits a star.
|The different shapes of the moon are called the____________.
|A large system of stars, gas, and dust is called a ____________.
|Everything that exists in space is the _____________.
|How long does it take earth to rotate on its axis once?
|24 hours – 1 day
|What is the source of all energy in the solar system?
|About how long is a full cycle of the moon?
|about 28 days (29 1/2 days) or 4 weeks
|What is the phase of the moon where the whole moon is dark from the earth?
|About how long is a half cycle of the moon?
|about 14 days or 2 weeks
|Planets between the sun and the asteroid belt are the ___________ _____________.
|How long does it take the earth to revolve around the sun once?
|365 days or 1 year
|What is the phase of the moon where the whole moon is visible from earth?
|Why is Mars called the red planet?
|It looks fiery red from earth.
|What 2 gases make up most of the sun?
|hydrogen and helium
|Name the 2 reasons the seasons change.
|earth's tilt and its orbit around the sun
|Name the 4 inner planets.
|Mercury, Venus, Earth, and Mars
|Name the 4 outer planets.
|Jupiter, Saturn, Uranus, and Neptune
|What planet is a dwarf planet?
|What color of star is the coolest?
|What color of star is the hottest?
|What color of star is a medium temperature?
|What causes parts of the U.S. to be warmer than other areas in the summer?
|The warmer areas are closer to the equator.
|Can people in the northern hemisphere see the same constellations as people in the southern hemisphere? Why or why not?
|No. They are facing different parts of space.
|Why does the calendar have 366 days every 4 years instead of the normal 365 days?
|Each year is really 365 1/4 days long, so we add en extra day every 4 years to make up for the extra hours.
|What do we call the year that has the extra day?
|Why do the positions of the constellations seem to change in the night sky?
|Earth is orbiting the sun so we see different parts of the night sky at different times of the year.