Show:
Moon Phases
Minor Members of the Solar System
Stars
More Stars
Galaxy
100
It takes this long for the moon to orbit the Earth
What is one month
100
these are small rocky bodies that are remnants of the inner solar system
What are asteroids
100
These are groups of stars named by early astronomers
What are constellations
100
Star formation begins with a cloud of these 2 things
What elements (H and He) and interstellar dust
100
This most common type of galaxy is a sphere shape with most stars crowded at the center
What is an elliptical galaxy
200
This phase is when we do not see the moon (it's all dark)
What is new moon
200
These are asteroid fragments that are the size of sand grains
What are meteoroids
200
Name two ways astronomers categorize stars
What color, size and brightness, chemical composition, and mass.
200
This is a huge, shrinking, heating, spinning, flattening, ball of gaseous particles on its way to becoming a star
What is a protostar
200
This is a disk shaped galaxy with hot bright stars and spiral arms
What is a spiral galaxy
300
This phase occurs right before the new moon (hint: it's getting smaller)
What is waning crescent
300
These are meteoroids that enter Earth's atmosphere and burn up
What are meteors
300
This is the color of the hottest stars
What is blue
300
This is a pair of stars which revolves around a common center
What is a binary star
300
This type of galaxy forms from collisions of other galaxies
What are irregular galaxies
400
This is the reason we always see the same side of the moon
What is the moon's rotational period equals its revolution
400
These are dusty pieces of ice and rock that partially vaporize when they pass near the Sun
What are comets
400
This is the brightness of a star as it appears from earth
What is apparent brightness
400
This star is a super dense central remnant of a supernova
What is a neutron star
400
This galaxy, which holds about a trillion stars, is the Milky Way's nearest neighbor
What is Andromeda
500
This occurs when the Moon moves within Earth's shadows and occurs during full moon phases
What is a lunar eclipse
500
The is when Earth encounters a swarm of meteroids traveling in the same direction and at nearly the same speed as Earth
What is a meteor shower
500
This type of star is much brighter than main sequence stars
What are supergiants
500
After a star's nuclear fuel is gone, and it cools and radiates no energy (dies), it's called this
What is a black dwarf
500
The Milky Way is this type of galaxy
What is a spiral