This is the imaginary line on which an object rotates.
What is an axis?
100
This comet is visible on earth every 76 years.
What is Halley's comet?
100
This is the actual name of what we call the North Star.
What is Polaris?
100
This is how long it takes the earth to make one complete rotation on its axis.
What is 24 hours?
200
This is a group of stars that form patterns in the night sky.
What is a constellation?
200
This is the shape or a comet's tail.
What is an elliptical shape?
200
This is a huge globe of hot gases that shines by its own light.
What is a star?
200
This is how long it takes the earth to make one revolution around the sun.
What is 365.25 days?
300
This is an instrument that is used for viewing distant objects that uses two lenses to gather light and produce an image.
What is a refracting telescope?
300
A meteor is often referred to as this.
What is a shooting star?
300
Ursa major (constellation) is thought to be a picture of this.
What is a mother bear?
300
This is what causes day and night.
What is the rotation of the earth on its axis?
400
A reflecting telescope uses this at the back of its tube to gather light and produce an image.
What is a curved mirror?
400
This is the star that Halley's comet orbits.
What is the sun?
400
These are a stream of charged particles given off by the sun.
What are solar winds?
400
This is what causes the different seasons.
What is the tilt of the earth on its axis and the earth's rotation around the sun.
500
This is the difference between rotation and revolution.
What is rotation is the spinning motion of an object on its axis and revolution is the movement of an object around another object or point.
500
The difference between a comet, a meteor, and a meteorite is this.
What is a comet is made up of ice, gas, and rock that orbits a star; a meteor is a rock (can be from a comet) or dirt particles that burn up in earth's atmosphere; and a meteorite is the material left from a meteor that has landed on the ground?
500
Polaris is at the of this constellation.
What is ursa minor?
500
This is why we are able to see the stars at night.
What is we are pointed away from the sun and are then able to see the stars' light.
500
These are the names of five planets that we know of in our solar system.
What is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto?