If you photographed the sky all night long and got a picture with a small dot in the center surrounded by curves, the celestial object in the center would likely be Polaris.

 The Earth's yearly trip around the Sun is its revolution.

 A group of stars that forms a pattern in the sky is a constellation.

 Polaris appears to be almost motionless because it is directly above the North Pole.

 Large Mirrors are easier to build than large lenses, so the largest telescopes in the world are reflecting telescopes.

 Dust particles that speed into the Earth's atmosphere and burn up are meteors.

 The spinning of the earth on its axis is rotation.

 A meteor that falls to Earth is a meteorite.

 The first people to see Venus each evening are those living on the East Coast of the U.S.

We are unable to see certain constellations at night in the Spring because earth's revolution moves it into a different position in space.  Since Earth is in a different position, its night side faces a different direction than another time of the year, like Fall.