THE
STARS
STARS
What do we call the one star in our solar system?
The Sun
What does rotation mean?
To spin on an axis
Name the seasons in order.
Summer, fall, winter, spring
The moon is know as our natural ________.
satellite
What force causes the planets to orbit around the Sun?
gravity
What are stars made of?
How many hours does it take for the Earth to complete one rotation?
24 hours
What two factors gives us seasons on Earth?
Earth's revolution around the sun and it's axial tilt
How long does it take for the moon to complete one revolution around the Earth?
28- 29 days (one lunar month)
What is the name of our galaxy?
Milky Way
How old is the sun?
about 4.6 billion years
What is the name of the imaginary pole that the Earth spins around?
an axis
What season is the Southern hemisphere having when the Northern hemisphere is having summer?
During which phase is the moon not visible?
New Moon
List all the planets in order from the Sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
What are constellations?
patterns of stars
What direction does the Earth rotate?
counter clockwise
How long does it take for the Earth to complete one revolution around the sun? AND what direction does it travel?
365 1/4 days counter clockwise
During which phase can a lunar eclipse occur?
Full Moon
What are three differences between the inner and outer planets?
size, rings, composition
What do we call the model of the solar system in which the sun is at the center?
heliocentric
Asia, Europe, Africa, Australia
Explain the difference between an equinox and a solstice.
Equinox- equal day and night (occurs in the fall and spring)
Solstice- longest day (summer) and shortest day (winter)
What does waxing and waning mean?
Waxing- getting bigger (moon "filling up")
waning- getting smaller (moon "fading away")
Which planet has the fastest revolution? Which planet has the slowest?
Mercury. Neptune.