Stars
A massive ball of gases that give off energy and light is a(n) _____.
sun
What is the center of the Solar System?
The Sun
The geocentric theory says that the ____________ is at the center of our solar system.
earth
Astronomy is the study of the ____________.
Universe
A(n) ___________ is a grouping of stars that shows a pattern or picture.
Constellation
It takes Earth _________ to make one complete rotation on its axis.
24 hours
The heliocentric theory says that the _________ is at the center of our solar system.
sun
What is a tool or instrument used to study far away objects in the sky
Telescope
How many constellations do astronomers recognize today?
24
77
12
88
If it is summer in the northern hemisphere, what season will it be in the southern hemisphere?
Winter
____________was the first astronomer to write the heliocentric theory.
Copernicus
An imaginary line that goes through both poles of a planet
(a) axis
(b) eclipse
(c) orbit
(d) rotation
Which star do sailors use to help them know which way is north?
North Star or Polaris
Seasons of the year are caused by...
the tilt of the Earth on its axis and the revolution of Earth around the sun. As Earth revolves, different parts of the Earth get more direct sunlight.
This astronomer confirmed the heliocentric theory with his telescope.
Galileo
The __________ has planets, moons, comets, and asteroids.
(a) solar system
(b) earth
(c) rotation
(d) United States
Name three important constellations discussed in class?
Ursa Major, Ursa Minor, Orion
What is the force acting between the Sun and the rest of planets?
Gravitational pull or Force
One reason we have DAYS AND NIGHTS is because:
The Earth ROTATES on its axis.
This astronomer used the naked eye, math calculations, telescope
Kepler
The path an object takes around another object?
(a) axis
(b) eclipse
(c) orbit
(d) rotation