Tools of Astronomers
the study of the universe
What is astronomy?
a complete spin on the axis. takes 24 hours to complete.
what is rotation?
means "growing larger"
What is waxing?
Mercury, Venus, Earth, and Mars.
what are inner planets?
Jupiter, Saturn, Uranus, Neptune, and Pluto.
what are outer planets?
a device used to collect light. It makes distant objects appear closer/larger.
what is a telescope?
if you cross this going west, you add a day.
what is the International Date Line?
means "growing smaller"
what is waning?
the layer of the atmosphere where weather occurs
what is the troposhere?
separates the inner and outer planets.
what is the asteroid belt?
a well tested scientific explanation supported by evidence
what is a theory?
one complete trip around the sun
what is revolution?
when the Moon blocks our view of the sun
what is a solar eclipse?
the layer of the atmosphere where the ozone layer is
what is the stratosphere?
a ball of ice and rock that orbits the Sun.
what is a comet?
the bending of waves as they go from one substance to another
what is refraction?
The United States is split into 4 different what?
What is Standard Time Zones?
a blocking out of the Sun when the Moon passes into the Earth's shadow
what is a lunar eclipse?
what are asteroids?
any part of a meteoroid that reaches Earth's surface.
what is a meteorite?
the number of waves that pass through a point in a second
what is frequency?
this causes day and night, and the season to change.
what is revolution?
caused by the pull between Earth and the Moon.
what are tides?
this planet is the 3rd planet from the Sun
what is Earth?
a meteoroid that enters Earth's atmosphere and burns with a streak of light.
what is a meteor?