Scientists use this to measure distance in space.
#13
What are light years?
100
A large group of stars held together by gravity.
#11
What is galaxy?
100
Frozen masses of water, dust, and other materials. Ancient astronomers referred to them as "hairy stars" or stars with tails.
#19
What are comets?
100
The degree of Earth's tilt.
#23
What is 23.5 degrees?
200
The Earth is the center of our solar system.
TRUE or FALSE #9
What is FALSE?
200
Why do we say that astronomers are "going into space?"
#2
Our solar system is mostly empty space
200
Stars are made up of this.
#18
What are gases?
200
A group of stars that form a definite pattern and can be seen in the night sky.
What is a constellation?
#17
200
Flying pieces of rock out in space, before they reach the Earth's atmosphere.
#21
What are meteroids?
300
A motion of turning or moving around another object other than itself.
#7
What is revolution?
300
The distance of our Sun from Earth.
#16
What is 93,000,000 miles?
300
Anything relating to, involving, or observed in the sky or outer space.
What is celestial?
#3
300
These are also known as the terrestrial planets because they are solid and rocky - similar to Earth.
What are the "inner planets?"
(Mercury, Venus, Earth, & Mars)
#10
300
The direction in which Earth always turns.
#24
What is counter-clockwise?
400
Name the 8 planets in order from closest to the Sun to the farthest from the Sun
#4
What is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune?
400
A turning motion in which something turns around its own axis or imaginary center.
#6
What is rotation?
400
Put the following words in order of size - smallest to largest
Solar System Universe Galaxy Planet
#5
What is Planet, Solar System, Galaxy, Universe
400
Tiny bits and pieces of rocks that flash across the sky.
#20
What are meteors?
400
Describe the relationship between the color of a star and its temperature.
Stars with higher surface temperatures are blue-white or white stars. Stars with lower temperatures are red or orange. Stars with medium temperatures are yellow.
500
Four characteristics Earth has that make life possible.
#12
What are the presence of an atmosphere (w/ oxygen), running water, and suitable location and temperature?
500
How astronomers classify stars.
#14
What are size and color?
500
The planets in our solar system travel, or orbit around the sun?
TRUE or FALSE #8
What is TRUE?
500
The cause of day and night.
What is one complete rotation of the Earth on its axis?