Characteristics of the Universe
Observing Space
Earth Movement
Time
100
The scientific study of the universe
Astronomy
100
Humans can only see this type of wave
visible light
100
The earth spinning on its own axis is called
Rotation
100
The point at which the date changes on earth
What is the international date line
200
A solar system is apart of ______
What is galaxy
200
visible light, radio waves, x-rays, gamma rays, make up the
electromagnetic spectrum
200
When the earth moves around the sun it is called a ______ and takes how long?
rotation and 365 days
200
how many time zones are there on earth
What is 24
300
We measure distance in space in ________
Astronomical Units
300
What are the two types of telescopes
Refracting and Reflecting
300
Two things that prove earths rotation
the pendulum and constellations
300
What is it called when the sun crosses the celestial equator? It happens twice what are they called?
Equinox autumnal and vernal
400
What galaxy are we in
Milky Way
400
Why are some telescopes better in space
because of interference from the earths atmosphere
400
What is the point in earths orbit that is farthest from the sun
Aphelion
400
The crossing of the tropic of Cancer and the tropic of Capricorn single the start of two things., What are they?
Summer solstice, and Winter Solstice
500
What is the speed of light
300,000km/s
500
Who discovered the telescope
Galileo
500
The point closest to the sun is
perihelion
500
What is it called when we change time twice a year
daylight savings
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