Why do we have seasons?
Because the earth is tilted on its axis as it revolves around the sun.
Theory of how the universe began
The Big Bang Theory
What phase of the moon is this?
third quarter
When the light of the sun on the moon is blocked by the earth
lunar eclipse
What type of galaxy is this?
spiral
What type of galaxy is this?
elliptical
How long does it take the earth to rotate around its axis?
24 hours, 1 day
What phase of the moon is this?
new moon
lumps of rock or iron that were once part of an asteroid that orbit the sun
meteoroid
Icy body that releases gases and orbits the sun
comet
What is the imaginary line that goes between the north and south hemisphere called?
equator
What type of galaxy is this?
irregular
What is the imaginary line that the earth rotates around called?
axis
How long does it take the earth to revolve around the sun?
365 days, 6 hours, 9 minutes, or 1 year
When the moon is between the earth and the sun
solar eclipse
a large rocky body in space, in orbit around the Sun
asteroid
Why do we have night and day?
Because as the earth rotates different parts of the planet are in light and darkness.
What phase of the moon is this?
full moon
streak of light seen when meteoroid enters the earth's atmosphere
meteor
Why does the earth have different time zones?
because of Earth's rotation, the sun illuminates the Earth, but only one portion at a time
What phase of the moon is this?
waxing
What phase of the moon is this?
waning
What phase of the moon is this?
first quarter
What is it called when human made objects are floating in space?
space trash, space debris