A point in space that has such a strong force of gravity that nothing within a certain distance of it can escape.
What is a black hole?
100
An area on the sun that is darker than the rest of the sun.
What is a sun spot?
100
This occurs when the Moon blocks out the Sun's light.
What is a solar eclipse?
100
This is what ancient people used to make calendars?
What are patterns in the sky?
100
This tool, invented in 200 BC, measures the angle between the horizon and a star or a planet.
What is an astrolab?
200
A huge system of stars, dust and gas held together by gravity.
What is a galaxy?
200
This is the best place for a telescope to view stars.
What is space?
200
This occurs with the Earth casts a shadow on the Moon.
What is a lunar eclipse?
200
Ancient people used patterns in the sky to help them decide when to do these important tasks.
What is planting and harvesting crops?
200
This tool, invented before the 1400's, gathers light to magnify faraway objects in the sky.
What is a telescope
300
The distance light travels in one year.
What is a light-year?
300
There are this many galaxies in the universe.
What is billions!
300
The Earth makes one revolution around itself in this length of time.
What is 24 hours.
300
Galileo discovered this about the Earth's orbit.
Early people thought that the sun revolved around Earth and that Earth was the center of everything, but Galileo discovered that the Earth travels around the sun instead.
300
Issac Newton invented this type of telescope that uses mirrors to focus light and magnify distance objects.
What is a reflecting telescope?
400
A gigantic explosion that occurs near the end of the life of some stars.
What is a supernova?
400
True or False: The reason why some constellations can be seen in the east at one time and the west at another time is because the stars are moving across the night sky.
What is false. The Earth is rotating.
400
The Earth makes one full revolution around the sun in this length of time.
What is 365 days or 1 year.
400
Ancient people left this behind which allows historians to understand how their culture was influenced by the stars.
What are large stone structures (such as Stonehenge and some pyramids)
400
Early telescopes used these expensive items to focus light.
What are lenses?
500
A grou pf stars form in one of these.
What is a nebula?
500
These three factors affect how bright a star appears in the night sky.
What is size, temperature and distance from Earth.
500
The sun is made up of these two gasses.
What is Hydrogen and Helium
500
Galileo discovered this about the Moon.
The Moon has mountains.
500
This person was the first person to use a telescope for astronomy.