6th grade Flashcards
1
Q
month
A
a division of the year that is based on the orbit of the moon around the earth.
2
Q
day
A
the time required for earth to rotate once on it’s axis
3
Q
astronomy
A
the study of the universe
4
Q
year
A
the time required for the earth to orbit once around the sun
5
Q
telescope
A
an optical instrument designed to make distant objects appear nearer, containing an arrangement of lenses, or of curved mirrors and lenses, by which rays of light are collected and focused and the resulting image magnified.
6
Q
refracting telescope
A
a telescope that uses a converging lens to collect light.
7
Q
reflecting telescope
A
a telescope in which a mirror is used to collect and focus light.
