The ______________ of the earth causes day and night.
the rotation or spin
100
True or False the Sun is the biggest star in the universe.
False
100
When the lighted side of the moon is directly facing the earth, What phase of the moon do we see?
Full Moon
100
The ______________ of a comet is like a dirty snowball.
nucleus
100
The asteroid belt is between what two planets
Mars and Jupiter
200
The _____________ of the Earth causes the seasons
the tilt of the axis
200
A star begins as a cloud of dust called a what?
Nebula
200
The pull/ gravity of the moon causes what to happen on Earth?
The tide
200
A _______________ is a small rocky object floating in space. (Hint: the answer is not an asteroid.)
Meteoroid
200
Name the two tails of a comet.
Dust and Ion
300
When the northern hemisphere is pointing directly at the sun. What is the season in the northern hemisphere?
Summer
300
When a star explodes, What is it called?
Supernova
300
The position of the Moon in relation to the Earth is always changing. So even though half the moon is alway light, we see different portions of the lighted side. This causes what?
The phases of the moon
300
A ___________________ is a meteoroid that hits the surface of Earth.
Meteorite
300
The hottest stars are what color?
White or Bluish
400
How many full days does it take the Earth to revolve around the sun one time?
365 Days
400
Name all three types of galaxies.
Spiral, Elliptical, and Irregular
400
True or Flase Half of the moon is always recieving light
True
400
The tail of a comet points in what direction.
Away from the sun
400
Most comets orbit where?
The ort cloud
500
If the Tilt of the axis is not pointing toward or away from the sun, there are two possible seasons it could be. What are these two seasons?
Spring and Fall
500
When a large star explodes, what can sometimes be created?
A blackhole
500
Why does the moon have so many craters?
There is no atmosphere on the moon. This means that meteors do not burn up before hitting the surface of the moon.
500
A meteoroid that enters Earth's atmosphere is called a what?