Dr. Hugh Ross
Our source of heat, light, and energy.
What is the Sun?
An astronomic instrument that uses the sun to measure time.
What is a sundial?
A pattern of stars.
What is a constellation?
365 days is this many Earth years.
What is 1?
The 8th planet from the sun.
What is Neptune?
Scientists believe sunspots affect our ___________ on Earth.
What is weather?
True or False: The pyramids are natural structures that were used to align the sun or a star to a specific spot at a certain time of the year.
What is false?
(100 extra points: Make the statement true.)
This instrument bends light that passes through it and forms a magnified image.
What is a refracting telescope?
The 2nd layer of the sun (starting from the outside in).
What is the chromosphere?
The man-made structure in England that is believed to be an early observatory.
What is Stonehenge?
These 4 planets are called the ____________ planets because they are Earth-like. (Fill-in the blank and name the planets for full points)
terrestrial; Mercury, Venus, Earth, and Mars
One of the oldest devices that helped astronomers determine the location and motion of the sun in relation to Earth. Made of a pole, column, or pillar.
What is a gnomon?
During a solar eclipse, the ___________ blocks our ability to see the __________.
What are moon (1st blank) and sun (2nd blank)?
The 2nd layer of the sun (starting from the outside in).
What is the chromosphere?
The estimated internal temperature of the sun.
What is 27 million degrees Fahrenheit?
This zone of the sun has plasma particles that move freely and is the beginning of the outermost layer.
What is the convective zone?
American astronomer who discovered Pluto in 1930.
Who is Clyde William Tombaugh?
This branch of astronomy is the study of the universe's history and future.
What is cosmology?
The farthest point of a planet from the sun.
What is its aphelion?
These are large eruptions of energy and electrically charged __________ coming from the sun's surface.
(Fill-in the blank and answer what this is describing)
What is plasma (fill-in the blank)?
What are solar flares?
These are the 3 factors that determine a planet's brightness.
What are:
1) Distance from the sun
2) Reflective ability due to its atmosphere
3) Its size
Venus and Uranus rotate ______________ while the other planets rotate _______________.
What are counterclockwise (first blank) and clockwise (second blank)?
Three ways that the Northern Lights can be dangerous.
What are:
1) Destroy delicate communication satellites orbiting Earth
2) Disrupt power supplies
3) Disrupt radio wave reception
AU stands for this.
What is astronomical unit?
The 3 criteria that makes an astronomical body a planet.
What are:
1. It must orbit the Earth
2. It must have a spherical shape.
3. It must be big enough to clear its orbit.